SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a anatomical dissimilarities
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b anatomical similarities
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c physiological Simmilarities
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d physiological dissimilarities
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Detailed explanation-1: -Answer and Explanation: The similarities in forearm bone structure in humans, dogs, birds, whales, and many other vertebrates are due to common ancestry in all vertebrates. This is referred to as homology, and all vertebrate forearms have homologous ancestry.
Detailed explanation-2: -Hence, the similarity of bone structure in the forelimbs of many vertebrates is an example of homology.
Detailed explanation-3: -Humans, whales, lizards, and birds all have differently shaped forelimbs, reflecting their different lifestyles. But those different forelimbs all share the same set of homologous bones-the humerus, the radius, and the ulna. These same bones can even be seen in fossils of the extinct lobe-finned fish, Eusthenopteron.
Detailed explanation-4: -The forelimbs of all mammals have the same basic bone structure. Analogous structures are structures that are similar in unrelated organisms. The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor.