Im gonna go with C. But B might also be the case..
The feature that helps organisms survive better in its environment is adaptations.
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Answer:
To test the presence of protein in the food substance which gives a blue-to-purpule colour
Analogies are the result of convergent evolution. Interestingly, though bird and bat wings are analogous as wings, as forelimbs they are homologous. Birds and bats did not inherit wings from a common ancestor with wings, but they did inherit forelimbs from a common ancestor with forelimbs.