Fruit Fly Larvae with "Rover"phenotypes Were More Likely to Survive

Multiple Choice

Fruit fly larvae with "rover"phenotypes were more likely to survive under __________ conditions, whereas fruit fly larvae with "sitter"genes were more likely to survive under __________ conditions.

A) hot; cold
B) cold; hot
C) crowded; low-density
D) low-density; crowded
E) wet; dry