Fleas and springtails both lack wings
A)because they never evolved wings and are both primitive insects.
B)because they are both parasites and lost wings from winged ancestors.
C)fleas are primitive but springtails lost wings when they gained their springtails.
D)springtails never had wings but fleas are derived from winged fly-like ancestors and secondarily lost wings when they became parasites.
E)None of the choices is correct.

Question

Quizplus · Accepted Answer

Springtails never had wings, but fleas are derived from winged fly-like ancestors and secondarily lost wings when they became parasites. Therefore, option D is the best choice. Option A is incorrect because springtails are not insects, and their lack of wings does not necessarily make them primitive. Option B is incorrect because the lack of wings in fleas and springtails may have different evolutionary explanations. Option C is also incorrect because springtails did not gain their springtails by losing their wings. Option E is incorrect because there is a best choice for this question.

Fleas and Springtails Both Lack Wings