Question

positive effect
the babies are also more likely to have
high fitness if they have the dark green
trait.

multiple-choice question
a variation with a positive effect will

decrease the organism’s fitness

increase the organism’s fitness

rewatch

Explanation:

A positive effect on a variation implies it benefits the organism. So a variation with a positive effect should increase the organism’s fitness, while "decrease" is the opposite of positive.

Answer:

B. increase the organism's fitness (assuming the second option is labeled B; if the first option was A and the second B, the correct one is the option with "increase the organism's fitness")