Question

which best illustrates a result of natural selection?
a bat that is born with a wing that is missing the web
dark - colored hares living in a snowy area
mosquitoes that transmit disease to humans
giraffes having increasingly longer necks over time

Explanation:

Natural selection involves traits that enhance survival/reproduction becoming more common over generations. A bat with a missing wing web is a random mutation (not a selected trait). Dark hares in snow are poorly camouflaged (unlikely selected). Mosquitoes transmitting disease is a byproduct, not a selected survival trait. Giraffes’ longer necks over time result from selection for accessing higher food, improving survival/reproduction.

Answer:

D. giraffes having increasingly longer necks over time