The wings of a bat and a bird are examples of

Question

BlackTom AI · Accepted Answer

Question restatement: The wings of a bat and a bird are examples of what?

Option analysis:
- Since the provided answer is 'analogous structures.', we will justify why wings in bats and birds are considered analogous.

Why this is correct:
- Wings in bats and birds perform the same function (flight) and have evolved to fulfill a similar role in the organism's ecology. However, they do not derive from a single, shared ancestral wing structure dedicated to flight; instead, they arose independently in two distinct lineages. This is the hallmark of analogy: similarity due to convergent evolution rather than descent from a common ancestor with the same trait.
- In more detail, both bats and birds use forelimbs adapted into wings, but the bones and development paths show different evolutionary origins and anatomical arrangements. The similarity in function is high, while the similarity in origin is low, which characterizes analogous structures.

Why other potential options (if they were present) might be incorrect:
- If an option claimed these wings were homologous structures, that would be inaccurate in the strict sense, because homologous structures arise from a common ancestor with the same bone pattern; bats and birds do not share a wing structure inherited from a winged common ancestor—both groups developed flight independently.
- If an option suggested genetic or developmental sameness implying identical embryonic origin, that would misrepresent the distinct developmental pathways that each lineage underwent to achieve wings.
- If an option claimed they are vestigial or non-functional, that would be incorrect since both bats and birds use their wings for active flight, demonstrating functional significance rather than vestigial status.

Summary takeaway:
- The wings of bats and birds are analogous structures because they serve a similar function (flight) but evolved independently in two lineages, exemplifying convergent evolution rather than descent from a common winged ancestor.

Biol-100-OLH-OMH-ONH Quiz #10

The wings of a bat and a bird are examples of

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