OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Structures that appear the same, but have different ancestral origins.
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Structures that appear the different, but have the same ancestral origins.
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Any two body parts from the same organism
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Parts that no longer appear to have a function
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Detailed explanation-1: -Homologous structures are those that have the same basic structure but serve different tasks. Reptiles, amphibians, and mammals’ forelimbs are examples. Homologous structures share a similar ancestor.
Detailed explanation-2: -Homologous structures are similar structures that evolved from a common ancestor.
Detailed explanation-3: -Analogous structures are structures which perform the same function, but have different ancestry. 3. We know that organisms must have evolved structures independently if they do not have a common ancestor.
Detailed explanation-4: -These likenesses in structure, called homologies, are the result of descent from a common ancestor. In related species, the same anatomical features evolved into distinct forms as they were used in different environments or for different functions.