Natural Selection

11/19/2018

Mr. Hong (AKA master of the volleyball dance) set us on the path to success and now it Is time to: BUMP, SET, SPIKE! That's where we want to get to in volleyball! In science, we learned the difference between qualitative and quantitative data and then planned out the data we will collect when observing the ecosystems. Students then started organizing their data collecting sheets to get ready for observations #1, which we will complete tomorrow! After music, we practiced comparing and ordering decimals. Tomorrow we will learn about natural selection from Ms. Chonan and Mr. Collins so do the PAR very carefully to help build your background knowledge!

1) MATH:

Complete the math handout (click)

2) SCIENCE:

Complete the unit self assessment (click)

3) POST A RESPONSE:

Watch the following video and in a paragraph with an introduction, body and conclusion explain the ideas of: Common descent and natural selection.
Use these questions to help guide your paragraph:
What is the theory of common descent?
What is the theory of natural selection?
How did the theory of natural selection help support the theory of common descent?
Give another student some feedback on their paragraph
Edit/revise to improve you post

VIDEO LINK
WHAT IS NATURAL SELECTION

Nathan

11/19/2018 05:25:35 pm

Frist

Nathan

11/19/2018 05:25:54 pm

lol First

Nathan

11/19/2018 06:16:16 pm

Natural selection is the process of evolutionary changes not in a random way. The theory of common descent is that all living things on earth are related. Common descent is hard to observe because we cant go back in time to see the evolution happen. The theory of natural selection is that animals or organisms adapt to where they live and what they need to do to survive in their habitat. Darwin's discovery impacted the world because science studies are easier to understand now. Natural selection has helped the theory of common descent because natural selection can show if they are like other animals and compare it to something that acts the same way as other species.

vincent qi

11/19/2018 05:27:09 pm

2nd

Annabelle

11/19/2018 05:36:35 pm

3rd

owen

11/19/2018 05:39:47 pm

lol

Nathan

11/19/2018 05:46:16 pm

Sorry guys i forgot to ask a question about the math. I just need a little help on question 8.

Nathan

11/19/2018 05:47:06 pm

I dont know what the equation means.

Sophie

11/19/2018 06:01:25 pm

Write your equation as 1.005+1.006, which equals to _____. Then, do _____ divided by 2. Once you have your answer, see what it does. Then explain it

Nathan

11/19/2018 06:17:36 pm

Thanks Sophie, I understand it now.

Owen

11/19/2018 06:02:45 pm

I think is 1.005+1.006= (a number)
and (a number)/ 2=

Owen

11/19/2018 06:03:13 pm

Can someone help me with the PAR

Owen

11/19/2018 06:04:58 pm

Plz!!!

Mr. Hong

11/19/2018 06:04:10 pm

@ Everyone - Do the VOLLEYBALL DANCE!

Jorge

11/19/2018 07:00:59 pm

Oh man.
Here we go again with the volleyball dance

Ester

11/19/2018 07:17:53 pm

*does the volleyball dance*

Vivian

11/19/2018 07:43:25 pm

*dances*

Mountain

11/19/2018 06:06:28 pm

What is natural selection? There are many theories towards the process of evolution. The theory of natural selection is where animals produce more offspring that is varied and can better survive in a different or new environment. And the common descent theory is that animals that share a more recent common ancestor is more closely related to the common ancestor. The theory of natural selection can further support the theory of common descent. It can support it because the natural selection process involves producing more and more offspring. Each new generation will be more varied compared to the common ancestor due to the evermore changes in ecosystems and environment. And the closer you are to the original the more similar or more related you are with the common ancestor.

Vivian

11/19/2018 08:04:16 pm

Good job, maybe keep the Natural Selection in one paragraph and not in a couple of them. Like not switch back and forth between the two topics, keep it in one. Otherwise grammar, spelling etc. is good

Mountain

11/19/2018 08:36:40 pm

Thank you for the feedback Vivian! Here is the revised version.

What is natural selection?

There are many theories towards the process of evolution. The theory of natural selection is where animals produce more offspring that is varied and can better survive in a different or new environment.
The common descent theory is that animals that share a more recent common ancestor is more closely related to the common ancestor.
The theory of natural selection can further support the theory of common descent. It can support it because the natural selection process involves producing more and more offspring. Each new generation will be more varied compared to the common ancestor due to the evermore changes in ecosystems and environment. And the closer you are to the original the more similar or more related you are with the common ancestor.

Joseph

11/19/2018 06:08:59 pm

Over a century ago, Charles Darwin came up with a ground-breaking theory that has only come up with more questions since. But what is it?

The theory of common descent is the notion that all animals, all organisms, and every living thing on our Earth is descended from one universal common ancestor. Everything on Earth is related to this one organism. It may not have been the first organism, but it the one that survived and even thrived in it's environment.

Now to the more famous component of Darwin's Theory of Evolution - Natural Selection. To say this briefly, natural selection means that nature will select the best genetic components of a population of organisms and pass that on into the next group of organisms. In short, this theory says that each new generation of organisms will have more individuals which thrive in their environment.

These two theories support each other - as all beings being descended from one population of organisms means that that one population improved over time. There may have been other starting beings, but our common descendant was the only one which didn't die out, and thus meaning that this common descendant was the only one which adapted to it's environment.

Yet Darwin's theory of evolution holds many problems. Think of an eye. It is a refined piece of machinery, made up of many billions of atoms all working in a specific way to interpret light. How would natural selection create such an intricate combination of atoms? Another question is why we evolved in different ways. For instance, humans and apes shared a common descendant millions of years ago. Why is it that humans are so advanced... yet apes have changed so little?

Who knows if humanity will ever know the answers to these questions about life, nature, evolution, and the being of everything. But isn't that what humans are? To question, even if we can't find the answer, is to be human.

-Joseph

Lucas

11/19/2018 06:40:45 pm

Is good

Jessica

11/19/2018 09:48:29 pm

Very good Joseph.
I love how you started with a question and answered it for your conclusion. Is descending from one population of organisms the only way these two theories support each other? What about the fact that they share the same concept? (like Vincent said) Maybe think more and elaborate more.
Love your writing style!

vincent qi

11/19/2018 06:23:20 pm

Common descent and Natural section both have a basic idea.

Common descent is the theory of how all critters have had a similar ancestor. Throughout evolution, species have evolved throughout random variation into diverse species. This theory was the conclusion of many facts, including some from Natural selection.

Natural section is another theory discovered by Charles Darwin. His visit to the Galapagos Islands helped him create Natural selection. Natural section is a theory that nature itself has selected the best type of species created, keeping them, while discarding the bad.

Natural selection has benefited the finding towards Common descent. Most compartments of common selection was based of Natural selection, for it was a conclusion of facts. Natural descent and common selection both have the similar concepts, one organism reproduces more, however few of the species will differ from the other, evolving into another species.

Nicholas Volokh

11/19/2018 06:50:28 pm

Joseph

11/19/2018 07:08:54 pm

Nicolas, you copied Vincent's PAR word for word.

vincent qi

11/19/2018 07:09:22 pm

copy/paste

Lucas

11/19/2018 07:09:47 pm

NIKILIS STOP

JORGE!!!!!

11/19/2018 07:11:14 pm

Common descent is when there is a descendant of a common species that is different from the rest. The theory of natural selection is that the consumers in nature eat the different ones from the common ones. The theory of common descent made people understand natural selection because the different descendants are the ones that are usually eaten more often by their natural predators.

Mountain

11/19/2018 07:48:05 pm

Can you explain how natural selection can support the idea of common descent?

vincent qi

11/19/2018 08:57:27 pm

you should add paragraphs, you forgot to explain what the theory of common descent is and your last sentence is a run-on.

Ester

11/19/2018 07:16:18 pm

The theory of common descent is basically all living organisms on earth are related. They all descended from one common ancestor. This theory is just a conclusion based on all the common facts. Facts like DNA, fossils, basic comparison of anatomy and etc. Though, in the past many disagreed with the theory because "you can not get order and complexity from random chaos alone", Some organisms descended complex and orderly some had random variation. Until, Charles Drawin made the theory of natural selection. Natural selection is basically breeding organisms specifically to make more so a improved version of that organism. For more mammal organism, the land they were inhabitant too changes how the live meaning it changes how the use their body. From that their body slowly changes, so they could survive. Now, this theory helped the theory of common descent because it give that theory more factual support. At first, we just thought it was all random and from that some people disagreed. After the discovery of natural selection it isn't totally random. For animals, nature just has a way of naturally selecting a variation to keep it alive and reproduce. This would explain the different types of one animal depending on where they live.

taya

11/19/2018 07:30:00 pm

the theory of common decent is a theory that all organisms come from the same things.
natural selections are not a theory because they've been proved and seen many times. a natural selection is when you start out with something and shape it in to something better. for example lets say your growing cabbage, you get the best cabbage and plant its seeds. you keep doing that and he cabbage gets better and better.
the theory of natural selection helped scientist investigate more in common decent.

Sarah

11/19/2018 07:38:22 pm

You should put capitals in the right places .

Jessica

11/19/2018 07:49:28 pm

Common descent and natural descent are similar in ways.
The theory of common descent describes how all living things on earth, share one common ancestor. It may not have been the first organism but everything on earth relates to it.
The theory of natural selection is the theory that nature itself selected and produced the best kind of species. There might have been another organisms in the beginning, but our common ancestor was the only one which didn’t die out and therefore meant that this common descendant adapted to this environment.
These two theories support each other, as the fact that they all descend from one population meaning that one species evolved over time. They both share a similar concept. One organism reproduce and because of genetic reasons, it creates different species. And the cycle continues.

Vivian

11/19/2018 08:09:20 pm

Maybe put the two topics in their own paragraph and not one big one? It would look nicer and more clean. :)

Jessica

11/19/2018 09:26:48 pm

Thanks for the suggestion Viv. I actually had paragraphs but maybe because there's no indent and extra space between maybe that's why. I get your point of view.
Here's my revised copy:

Common descent and natural descent are similar in ways.

The theory of common descent describes how all living things on earth, share one common ancestor. It may not have been the first organism but everything on earth relates to it.

The theory of natural selection is the theory that nature itself selected and produced the best kind of species. There might have been another organisms in the beginning, but our common ancestor was the only one which didn’t die out and therefore meant that this common descendant adapted to this environment.

These two theories support each other, as the fact that they all descend from one population meaning that one species evolved over time. They both share a similar concept. One organism reproduce and because of genetic reasons, it creates different species. And the cycle continues.

Sarah

11/19/2018 07:51:44 pm

Common Decent & Natural Selection

Common decent is a theory in which all organisms originate form the same spices. The theory of common decent is that all living organisms originate form one organism. The theory of natural selection is that overtime the organism will become better. The theories don't relate to each other. Nature doesn't care if it doesn't work so its not a highbred like things in nationals decent , so the theories don't relate to each other.

Vivian

11/19/2018 08:00:03 pm

There are two theories that is part of evolution. Common decent and Natural Selection.

Common decent is when an organism changed or evolve into different similar organisms through time. The organisms adapt in to its habitat, It’s very hard to observe because we can’t go back in time. So we use fossils when we observe.

Natural selection is does not evolve in an random way. They change themselves to fit in the environment or the habitat more. Let’s say broccoli and cauliflower, they look very similar but they live indifferent habitats. They all came from one plant which change through time

Vivian

11/19/2018 08:00:51 pm

I think it might sound confusing but please tell me if there are parts that can change and I will change it.

Annabelle

11/19/2018 08:48:13 pm

Good job answering the questions!

I think that in order to write/type a paragraph, you will need the topic sentence/intro to your paragraph, the body of the paragraph, and the conclusion. I am not sure if you answered the question of "How did the theory of natural selection help support the theory of common descent?". I think that if you take my suggestions, you may have a better paragraph! :)

Annabelle

11/19/2018 08:48:20 pm

Annabelle

11/19/2018 08:49:23 pm

Oops!!! Didn't mean to post two comments!

Ester

11/19/2018 09:03:34 pm

Vivian I think you did a great job. One thing though is that, Both the theories kind of have the same explanation. I know that they all fit into one explanation, but in the video you can totally see the slight difference and I want you to add those to give the reader a better sense of your whole paragraph.

Vivian

11/19/2018 10:46:59 pm

Thank you Annabelle and Ester for the reply. Here is the revised version where I have answered Annabelle’s questions “How did the theory of Natural Selection help support the theory of common decent?”

I also made my paragraphs more different as Ester had requested to write a better paragraph.

There are two theories that is part of evolution. Common decent and Natural Selection. These things very important in habitats and the Ecosystem.

Common decent is when an organism decent from a common organism. It’s very hard to observe because we can’t go back in time. So we use fossils when we observe. Since we can’t go back it’s a conclusion that common decent is when a organism decent from a common ancestor.

Natural selection is does not evolve in an random way. They change themselves to fit in the environment or the habitat more. Let’s say broccoli and cauliflower, they look very similar but they live indifferent habitats. They all came from one plant which changed through time. Or like an animal different animals are build or created to live and survive in their own environment. Natural selection is like nature picking which organisms or plants can live or reproduce and which don’t. It helps common decent because the organisms kind of know which plants to eat, so they eat the similar ones their ancestors ate. It doesn’t have a mind but it changes over time and we don’t notice it.

David

11/19/2018 08:07:46 pm

Natural selections and Common Selection are very intricate things. They have the same foundation, the basic idea, but a very different top.

Here is an example of Natural Selection

A species of rats live in a certain type of tree with the branches evenly spaced. Smaller rats could not reach from branch to branch and larger rats would break the branches and fall. Soon, all rats were just the right size for the tree branches.

As you could see, nature has basically picked the best kind of species, or the most genetically advanced, and modifying it more and more. Basically, this means that nature picks out the best genetic components and pass it on to the next generation.

Common Selection, on the other hand, is a theory that tells you how all creatures have descended on one ancestor. Every living thing on this earth has been descended and modified from this one very small organism. Like what Joseph said, this organisms doesn't have to be the first of its kind, but much rather the most thriving organism.

The two organisms are partially intertwined. Since all of the species all come from one organism, it leads to the conclusion that one organisms has been genetically modified and flourished through time. Obviously, there are many starting descendants for many species, but the common descendant did not ever die out. This means that the common descendant adapted to its environment.

Common descendants and Natural descendants are all intertwined, and that there are many mysteries that have yet not to have been solved about the two descendants and their theories.

Jessica

11/19/2018 09:28:48 pm

Great job David.
Maybe don't put "Here is an example of Natural Selection", it sounds informal. It's just my personal opinion.
Overall GREAT!

Matthew

11/19/2018 08:19:17 pm

Common decent means that all animal are related because all of them share the same common ancestor, Natural selection is when an organism changes its features to thrive and reproduce in its habitat. The theory of natural selection supports the theory of common decent because all a certain species could been put into a cold area, forest, a warm area and the animals would need to change their own features to survive. We could all be the same species but we were separated and put into certain, distinct places in the world. This could be the reason why certain species of animals seem very similar or have a lot common.

Sophie

11/19/2018 08:34:16 pm

The theory that all living organisms descended from the same being was created by Charles Darwin whilst he was traveling around the world.

Common descent is the theory that all living organisms are related to one another. All organisms were descended to one common ancestor.

Natural selection is that organisms in nature have chosen the best sort of it that was created, and reproducing the best sort. The rest are discarded.

The theory of natural selection supported common descent by showing that common descent created all the organisms, natural selection picked the “best ones” and reproducers and kept on reproducing. If that makes any sense

Ester

11/19/2018 09:05:40 pm

Sophie I think you can add more depth to your paragraphs. It doesn't seem you made a whole paragraph, you just seem to like say one sentence for each question and called a day. Overall, pretty good. It does show your understanding.

Sophie

11/20/2018 09:20:39 pm

Thanks easterrrr

Charles Darwin whilst he was traveling around the world. He noticed that some birds’ beaks were different sizes and shapes. He had though that the best explanation was common descent.

Common descent is the theory that all living organisms are related to one another. All organisms were descended to one common ancestor. Like let’s say you have an orange, a grapefruit, lemons, limes, whatever citrus you got. They all came from the same ancestor.

Natural selection is is that organisms in nature itself have chosen the best sort if it that was created, and reproducing the best sort. Like in nature, a cat with green fur (don’t ask) could be good at blending in with grass, and there are maybe like 2 grey cats and they’re not good at blending in. But then thanks to humans making cities and such a grey cat would blend in to the streets better, so grey cats would reproduce and the greens could disappear. This could also happen with a farm, like shown in the video.

The theory of natural selection supported common descent by showing that common descent created all the organisms, and natural selection picked the best ones and reproduced and kept on reproducing. Like for the birds, they kept on reproducing to get the best “beak” to eat the certain island foods. But of course there is one ancestor, one main “bird” with one beak, but also if there was only ONE bird how did it come to life? How did they reproduce? Did they answer this question and I just missed it?

In conclusion natural selection and common descent support each other theories, of course there are still questions scientists are still trying to answer. They’re both pretty interesting, like how nature itself can select, and change into ways that the earth changes. [if that makes sense lol]

Kheyria

11/19/2018 08:36:48 pm

Common descent means that all living things are related somehow. Over time they evolve to form multiple different species with a common ancestor. For example, in our early humans inquiry project, we learned that apes adapted and grew in brain size to form the human race we have today. Then again, monkeys also descended from apes. That would mean that humans and monkeys have a common ancestor and humans are somewhat related to monkeys even though there are huge differences between us. Thus concluding my explanation of the subject common descendents.

The meaning of natural selection is that "The process by which random evolutionary changes are selected for by nature in a consistent, non-random way" as it states in the video. In other words, it is how nature carefully selects what is to be taken out of itself so that the same creatures can produce moderated versions of that species and through time will evolve to improve.
Thus (once again) concluding my explanation for the subject of natural selection. Thank you.😋

Annabelle

11/19/2018 08:39:52 pm

People might think that evolving happens for no reason, but after a little bit of researching, I have all the facts to prove them wrong.

The idea of being related to every other organism may sound crazy but that is what the theory of common descent is. The theory suggests that all living things descended/evolved from the same ancestor.

Natural selection is the process by which organisms modify over time and results to changes in features. The changes allow an organism to adapt to its environment which will help it survive and have more offspring.

Since the environment is continually changing, organisms must evolve to suit its needs and adapt to its environment in order for survival.

As a conclusion, because of Charles Darwin's theories, I have realized that evolution is not just a bunch of random changes in an organism, it helps them live a better life and helps them to survive in its environment.

Joseph

11/19/2018 09:38:30 pm

Good job overall!
I have some preferential changes that I'd like to say but to be honest, it's all up to the person and their style of writing. The only problem that I think is non-preferential is the last sentence - "As a conclusion" -> I think you meant "To conclude" or something along those lines. Otherwise, all good!

Annabelle

11/20/2018 05:36:02 pm

Thanks for the feedback Joseph!

My edited version,

People might think that evolving happens for no reason, but after a little bit of researching, I have all the facts to prove them wrong.

The idea of being related to every other organism may sound crazy but that is what the theory of common descent is. The theory suggests that all living things descended/evolved from the same ancestor.

Natural selection is the process by which organisms modify over time and results to changes in features. The changes allow an organism to adapt to its environment which will help it survive and have more offspring.

Since the environment is continually changing, organisms must evolve to suit its needs and adapt to its environment in order for survival.

To conclude, because of Charles Darwin's theories, I have realized that evolution is not just a bunch of random changes in an organism, it helps them live a better life and helps them to survive in its environment.

Serin

11/19/2018 08:57:39 pm

Common Decent & Natrual Selection

Common descent means that all living things are related somehow. The theory is in which all organisms originate to form the same species. It is also that all living organisms originate to form another.
The theory in Natrual selection is that overtime the organism will change in features and behaviours. The theories shouldn’t be together or related because nature works in its own way and people can’t change that.😀

Owen

11/19/2018 08:58:40 pm

The idea of Natural selection, in my thought it meants is the differential survival and reproduction of individuals, that meant that the kid of a animal or other organisms might not look the same as thier parent.

Common descent meants that everything’s related to each other.
Can someone help me with, the last things
Still gonna try my best.
The natural selection choose whether they look like their parent or not.
( is that right?)
Plz

Oven

11/19/2018 09:05:34 pm

Owen great job of explaining the ideas of these two.
you should add more thinking of how natural selection can support the idea of common descent.

Ivan

11/19/2018 09:08:57 pm

LOL feedback to yourself, i like it!

Oven

11/19/2018 09:10:29 pm

Hey boi, i am a different person.

Jessica

11/19/2018 09:37:31 pm

Great feedbacks to yourself! This is how you reflect on your learning and improve! You should definitely use your suggestions and fix your paragraph.
Some suggestions that i would like to point out is to elaborate on your subject more. Maybe watch the video more in depth again.
Love that you are giving yourself feedback!

Ivan

11/19/2018 09:26:31 pm

the theory of common descent and natural descent are similar but there are some differences. first of all lets talk at common descent. common descent is where you start off with the same thing but that thing can change to be many other things. like how they stated in the video broccoli,cauliflower,Brussels sprouts..etc all came from the same weed but the end result may vary from the weather or the demand you put on that plant. the final result may be different but they all are related because they all came from the same plant. natural descent is when the organisms in the wild decide what they eat. a great example is from the video, the lizard chose what kind of buy they liked to eat. if that lizard only ate the red bugs then that population of the red bugs might decrease will the green bugs make a larger population. however living in different places the animals will adapt to that environment so maybe a lizard from Africa might eat more of the green bugs. this can be proven as non-random way because different animals may like the same type of animal, thats why some animal populations are in danger since a lot of other animals could have them as there meal.

Owen

11/19/2018 09:28:20 pm

Nice JOb ivan

Jessica

11/19/2018 09:40:19 pm

Nice job Ivan.
Like before, you should ALWAYS pay more attention to the punctuation. Maybe even separate your writing into paragraphs so it's easier and clearer to read.
Overall great.

Krizia

11/19/2018 10:30:52 pm

Natural selection is the process of evaluation where one kind is being selected out of the others in a non random way to be carried on for the next generation. Common descent has the meaning that all organisms are related in a way. They all have one common ancestor that they share together. Natural selection supported the theory of common descent by saying that having the selected ones go on with the changes make more of the evaluations of the different organisms. It leads to big changes but it is an improvement of evaluation. It has an improvement in their lifestyle.

Sophie

11/20/2018 08:46:23 pm

Good job Krizia! I think you should add more detail, but your overall paragraph did show that you understood the video.

Krizia

11/20/2018 09:32:04 pm

Thanks for the feedback Sophie!

Natural selection is the process of evaluation where one kind is being selected out of the others in a non random way to be carried on for the next generation. Nature chooses the best ones that are most likely to survive, to go on. Eventually, the others that aren’t quite adapted, will go extinct. Common descent has the meaning that all organisms are related in a way. They all have one common ancestor that they share together. For example, I believe that us humans, had a common ancestor which were apes. We had all evolved into what we are now. Natural selection supported the theory of common descent by saying that having the selected ones go on with the changes make more of the evaluations of the different organisms. Others weren’t as good in their place. It leads to big changes but it is an improvement of evaluation. It has an improvement in their lifestyle and gives them a better chance on survival.

Len

11/19/2018 11:18:58 pm

The theory of natural selection is the process where the organisms that are more adapted to their environment tend to survive and create more offspring. For example animals that live in very hot temperature need to adapt to the temperature as they breed the normal the heat gets, or as a grass hopper from now and from few years ago if we used bug spray the Grass hoppers from out time would have a better chance to survive longer or survive rather than the the Grass hopper from few years ago would die in a instant.
Natural selection is the main process that brings evolution.

Common descent is when a group of organisms share a most recent common ancestor. For example dinosaurs the ancestor of the birds. Common descent goes for all types of organisms.

jedd

11/20/2018 08:48:08 am

natural selection is a process that takes many years. it is used as a way of making the animals fit for their terrain and common decent is a theroy that say we all came for the same decendant.

Krizia

11/20/2018 09:24:12 pm

I recommend adding more detail and explaining more of your thinking. Also, don’t forget to put capitals at the start of your sentences!

Lucas

11/20/2018 07:06:19 pm

Natural Selection is several key concepts contained within the national theories of evolution. Common descent is the theory that all organisms are related in a way.

Lucas

11/20/2018 07:12:07 pm

Sorry accidentally posted.
CONTINUED
Natural Selection supports the theory of Common descent because we are probably related to the Neanderthals but evolved into different species. So we have commonly descended through thousands of years but have turned into a different species.

Tom

11/20/2018 09:00:49 pm

Natural Selection is a process where animals survive and starts to reproduce more, and it will take a lot of years. The theory of common descent is an organism that shares something in common. Like apes evolving into humans. I don’t get the last part

Kaden

11/20/2018 09:20:15 pm

A theory of common descent is a the theory of descent with modification is one of the two main components of the naturals selections. The theory of the natural selection is that the natural selection is the different survival and reproduction of individuals due to differences in the characteristic of a population over the generations. The evidence of common descent of living organisms has been discovered by scientists researching in a variety of disciplines over many decades and in the naturals selections.

Kaden

Jafeth

11/21/2018 07:21:19 am

Common descent describes how, in evolutionary biology, a group of organisms share a most recent common ancestor. organisms which share a more recent common ancestor are more closely related.

Jafeth

11/21/2018 07:30:15 am

Natural selection is the process by which organisms that are better suited to their environment than others produce more young animal. As a result of natural selection, the proportion of organisms in a species with characteristics that are adaptive to a given environment increases with each generation.

Nick

11/22/2018 05:20:00 pm

Common descent is when parents have offspring. And the offspring is a little different than the parents. And will not look the same as the parents. Common descent means that all living thins are related.
And they descanted from a common ancestor And nature decides who lives and who does not live.And only the animal's that can adapt. or in simpler words survival of the fittest

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