GENETICS AND EVOLUTION
EVOLUTION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cat fur and dog fur
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whale fins and human arms
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bird wings and insect wings
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gills in fish and lungs in mammals
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Detailed explanation-1: -Convergent evolution is the process whereby organisms not closely related, independently evolve similar traits as a result of having to adapt to similar environments or ecological niches. The wings of a bird and the wings of an insect are analogous structures and represent convergent evolution.
Detailed explanation-2: -Analogies are similar characteristics shared by two different organisms because of convergent evolution. For example, the wing of a dove and the wing of a butterfly are analogous; the bird lineage and the insect lineage evolved wings independently of one another.
Detailed explanation-3: -Bird wings and insect wings are analogous structures.
Detailed explanation-4: -This idea is illustrated by the phylogeny below, which is based on a large number of other characters. Bird and bat wings are analogous-that is, they have separate evolutionary origins, but are superficially similar because they have both experienced natural selection that shaped them to play a key role in flight.
Detailed explanation-5: -The wings of birds, bats, and insects are analogous structures; they serve the same function of flight but their structure and origin are different from each other.