Friday, October 20, 2017

Weekly blog evolution

https://upload.wikimedia.org/wikipedia/commons/1/1d/Anatomy_and_physiology_of_animals_Various_vertebrate_limbs.jpg
Summary: 
        Evolution is when a species develops certain traits to live better in the certain environment it is in so when you look at certain animals from one environment it is. Evolution is the thing that made creatures look, like how people think that animals have a common ancestor, humans evolved from apes and things. The diagram or picture above is to show the similarities in arm bones off different animals vs. human, you can see that some look more similar then others and they all have the same function and this is showing proof of common ancestors. When something has a similar function to another in a different animals like arms, legs, eyes, noses, teeth, etc. it is called a Homologous structure.

SP3: Planning and carrying out investigations:
        This week we did a experiment where we would take a fork spoon or knife and some buttons and beans. Then we would have a timer for 20 seconds and we would have to pick up as much as we can with our tool, and if we had 20 or more we would stay alive but if you got under you went extinct. When you get extinct you get replaced and this was to show how in natural selection it is more random and it is something that is chosen based on their fitness in the environment. This experiment was something that helped as a visual and an example and it was something that seems fun to do with more friends.

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