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Giraffes have evolved over time. They have evolved by enabeling to reach higher trees for food. They have produces a long neck and legs to rech higher branches. Giraffes once started off with short necks similar to a horse. They needed to evolve into this shape so they could reach food as food was being hard to find in lower areas.

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perod 7

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the process of change in the sequence composition of cellular molecules such as DNA, RNA, and proteins across generations

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a largely discredited biological hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching

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A rudimentary structure in humans corresponding to a functional structure or organ in ancestral animals.

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an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor

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variation in the relative frequency of different genotypes in a small population, either die or don't reproduce.

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natural selection arising through preference by one sex for certain characteristics in individuals of the other sex.

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Divergent-tracking 2 or more species down to their common ancestors.
Parallel-similar traits starting from similar ancestral condition.
Convergent- process whereby not similar organisms develop similar traits

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Seasonal move from animals to one area to another.

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changing structures of a gene. Alteration of basic single based units in DNA.

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the process in which animals tend to produce more offspring, survive, and adapt

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Variation
Inheritance
Selection
Time
important terms to know for evolution