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3 May 2018
25. In a hypothetical species of insect, individual males vary in the brightness of their red wings (from bright red wings to dull red wings), whereas females have dull brown wings. Which observation would best support the hypothesis that this sexually dimorphic trait arose due to sexual selection? a. Males with bright red wings attract more mates than males with duller red wings. b. Males eat a type of berry high in carotenoids that promote bright red wings, while females feed on nuts and seeds that lack carotenoids. c. Males with bright red wings are better able to escape from predators than males with duller red wings. d. Males with bright red wings live longer than males with duller red wings.
25. In a hypothetical species of insect, individual males vary in the brightness of their red wings (from bright red wings to dull red wings), whereas females have dull brown wings. Which observation would best support the hypothesis that this sexually dimorphic trait arose due to sexual selection? a. Males with bright red wings attract more mates than males with duller red wings. b. Males eat a type of berry high in carotenoids that promote bright red wings, while females feed on nuts and seeds that lack carotenoids. c. Males with bright red wings are better able to escape from predators than males with duller red wings. d. Males with bright red wings live longer than males with duller red wings.
Sixta KovacekLv2
5 May 2018
