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hello im taking comparative anatomy and i have a homework about vertebrate forelimbs and i need help with answering some questions please

. Compare and contrast the forelimbs of the lizard, bird and whale. Why do individual bones differ among these organisms?

2. Consider all of the forelimbs shown. Identify the class to which each belongs and describe how each is suited for the environment and habitat of the organism.

3. How are human forelimbs different from those of the cat? What are human forelimbs used for and how are they adapted for this purpose?

image.png4. Why are homologous structures useful in constructing evolutionary histories, while analogous structures are not? Be sure to include specific examples of each type of structure in your answer

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Vertebrate forelimbs. Because all vertebrates evolved from a common ancestor, their forelimbs share homologous structures. Trog bird Brand humerus ghi common ancestor earpals ick phalanges to human The diagram above represents forelimb structure of various vertebrates. The common bones are: humerus, ulna and radius, corpals, metacarpals and phalanges. Examine the bones in "common

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Vertebrate forelimbs. Because all vertebrates evolved from a common ancestor, their forelimbs share homologous structures. Trog bird Brand humerus...
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