Question

monarch butterflies are one of many species of butterfly that lack irritating spines as caterpillars. the bright orange coloration of the monarch butterfly is an indication that warns predators to stay away because they are foul - tasting and poisonous. the poison comes from their milkweed diet as caterpillars.
based on this information, how has adaptation allowed monarch butterflies to be successful without irritating spines?
a they find enough food as they move through their environment.
b they blend in with their environment to hide from predators.
c they have bright colors that attract a mate.
d they are not attacked by most predators and are able to reproduce successfully.

Explanation:

• Option A: The text focuses on defense against predators, not food - finding related to lacking spines. Eliminate A.
• Option B: The monarch has bright orange color, not camouflage to blend in. Eliminate B.
• Option C: The bright color is for warning predators, not attracting mates. Eliminate C.
• Option D: The bright color warns predators (they are foul - tasting/poisonous), so they are not attacked much, allowing successful reproduction, which explains their success without spines.

Answer:

D. They are not attacked by most predators and are able to reproduce successfully.