its for anthropology, i always rate thank you QUESTION1 In determining evolution
ID: 136131 • Letter: I
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its for anthropology, i always rate thank you
QUESTION1 In determining evolutionary relationships, the same biological structure that appears in two species that are descended from a common ancestor, but which appear to be different structures (perhaps because they are being used in different ways or for different functions) are called: homologies analogies phylogenies ontogenies lineages QUESTION 2 On the other hand, biological structures that are present in two species that are not related (they do not descend from a common ancestor) can sometimes appear to be the same structure when they really are not (perhaps because, even though they are different structures, they are being used for the same purposes or functions). In this manner, the "wings" of butterflies (insects), the wings of hawks (birds), and the "wings" of bats (which are mammals) are called: homologous structures analogous structures anagenetic structures parallel structures O none of the aboveExplanation / Answer
Answer1-
Homologies-Thry usually have same structure but have different function and are descended from a common ancestor.Eg- Human's arm and wing of a bird.
Answer2-
Analogous structure-Dissimilarities suggest that these structures are not inherited from a common ancestor.These are the result of convergent evolution.
Answer 3-
Homologous structure-Wings almost have same structure but perform different functions and have same embryonic origin.
Answer 4-
Analogous structure-these stucture are present in distinct species who do not have a common ancestor.
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