Question

a scientist divided a population of fruit flies into two containers, each with a different kind of food. then she bred the fruit flies under these conditions for many generations. lastly, she put the fruit flies from the two containers together again and observed which flies mated. which question was the scientist most likely testing?
a. will fruit flies bred under different conditions mate?
b. what kind of food do fruit flies prefer?
c. how many species of fruit flies can mate with each other?
d. do well - fed fruit flies make good pets?

Explanation:

The scientist divided fruit - flies into two containers with different food, bred them for many generations, and then put them together to observe mating. The key action is observing mating after different breeding conditions. Option A directly relates to whether fruit - flies bred under different conditions (different food in this case) will mate. Option B is about food preference which is not the focus of the mating observation. Option C is about species (the problem doesn't mention different species, just different breeding conditions). Option D is about fruit - flies as pets which is completely off - topic.

Answer:

A. Will fruit flies bred under different conditions mate?