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Period 7.

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Molecular Evolution is when differences in molecular similarities (usually proteins) can be used to determine degrees of relationships between different species.

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ORP is when organisms during embryological development go through their evolutionary stages.

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Natural Selection is one of the basic mechanisms of evolution.
It is basically where the good or stronger traits stay, and the bad or weaker traits leave.

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Something random happens that may take out some of one species causing another one to be more dominant ( not strength wise) "being lucky or unlucky"

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Sexual Selection is when one male fights to basically be the animal who mates with all of the females.

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Divergent, Parallel, and Convergent Evolution.

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Divergent, Parallel, and Convergent Evolution.

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Divergent: Two or more related species become less similar over time. "loss of similarities"
Parallel: Two different species become similar because of their lifestyles and habitats . "similarities"
Convergent: Animals with different ancestors become more similar. "differences become alike"

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Structures in some organisms that seem to have no use in one species but are useful in others.

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The abbreviation/ acronym stands for Variety, Inheritance, Selection, and Time.

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Gene  flow, also known as Migration, is any movement of individuals, and/or the genes they carry, from one population to another.

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Mutation is an alteration in the DNA sequence that make up genes. Mutations can range in all sorts of sizes and affect anywhere.

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Things that are similar in structure but have different uses for different species.

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The oldest-known type of stone tools are stone flakes and the rock cores from which these flakes were removed. Probably used for chopping and scraping, these tools are called Oldowans.

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Consists of flakes, choppers, and hammering stones.

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Homo sapiens not only made and used tools made of stone, they also specialized them and made a variety of sizes, made them more complex, more refined. The tools consisted of composite stone tools, fishhooks and harpoons, bows and arrows, spear throwers and sewing needles.