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-In conclusion I found that early hominids' tools and homo sapiens' tools are very much alike. However the way they make them is different and the tools are used in the same ways. Also that the homo sapiens' tools are a little more advanced than the hominid's tools. I learned that they both evolved in the same area. Then I inferred that homo sapiens evolved from hominids.

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http://humanorigins.si.edu/evidence/behavior/stone-tools/early-stone-age-tools
http://humanorigins.si.edu/evidence/human-fossils/species/homo-sapiens
https://padlet.com/skittlz_rock/j2li93h37399

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-About 200,000 years ago homo sapiens evolved in Africa. They used stone and flint tools. Flint is much sharper than the rocks that were previously used. Like hominids, homo sapiens made blades, axes, arrowheads , and even more tools. These tools were used for similar reason if not the same reasons as the early hominids' tools.

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-Early hominids lived in the Stone Age. They live in Africa like homo sapiens. Their tools were made out of stone, hence the Stone Age. The hominids would chip away at rocks to make the shape they wanted, whether it was sharp or curved. With this method they made axes, blades, arrowheads, and more tools. The uses of these tools are simple, they were used for hunting, protection, food gathering and preparing.

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-this is when embryos look almost exactly alike in the early stages of its creation. An example of this is apparent in chicken and humans, there are very little differences in these two embryos.

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Divergent, Parallel, and Convergent Evolution

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Divergent, Parallel, and Convergent Evolution

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-Divergent evolution is the collection of differences that evolution presents which can create a new species. One result of this is having the same bones in multiple different species.
-Parallel evolution is separate evolution paths starting from alike ancestral condition.
-Convergent evolution is when two separate organisms evolve to have similar traits. An example is sharks, which are fish, lcthyosaurs, which is a reptile, dolphins, a mammal, and penguins, a bird, each one is a different species but they all look alike.

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-this is when there is a change in the sequence composition of cellular molecules.

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-Vestigial organs are organs that were once needed in an organism but that organism has evolved to no longer need that organ. For example humans have an appendix but it is useless, how ever it use to be a necessity in the human body.

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-this is when structures are changed through evolution. An example is when bone structures change over time to better suit the environment of the organism. This is shone when looking at the bones of humans, frogs, bats, porpoises, and horses it can be seen that there are the same bones but they are organised differently.

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-this is a basic function of evolution. Genetic drift is when a certain gene vanishes. For example say there are light green, dark green, and red frogs, if all the frogs with the red gene are killed then that gene will be gone and there will be no more red frogs.

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-the process of when a specific trait is changed or filtered out through what an organism chooses to mate with. For example a female peacock is more attracted to a male with a huge fan of beautiful feathers than a male with little to no feathers, so the female will choose to mate with the more attractive male, therefor his genes will be passed on and future generations will have larger plumage.

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-Gene flow is the transfer of genes from one population to the next. For example if two populations of frogs, one with a mutated gene and one without, ended up in the area and the two populations mated then eventually the frogs without the mutated strain would then have the mutation.
-Migration is when a population moves together. Migration could have caused this situation. In this example one of the groups of frogs could have migrated in into the same area as the other frogs.

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-the changing of genes slowly over generations. An example of this is when giraffes developed a longer neck. The way that this happen was when giraffes had short neck they could not reach the branches of trees to get food so over time the mutated to have a long neck.

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-the process of when an organism adapts to their environment through reproduction. One Example of this is if a bird species has small beaks and needs a big beak to crack nuts. Then the birds will slowly develop a lager beak because the birds with lager beaks will be able to get food but the birds with small beaks will die of without food.

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-VIST is an acronym to help learn about evolution.
Variation
-mutation
Inheritance
-DNA and Sexual Selection
Selection
-Selection and Genetic Drift
Time
-Migration/Gene Flow

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by Jessica Weber
Period 5