Question

the quino checkerspot butterfly is still an endangered species. however, with the help of conservationists—and through the butterflies own efforts to adapt—these colorful heralds of spring will have a good chance of surviving and thriving.
based on the text, why do quino caterpillars go into diapause?
their bodies cannot withstand the cold of the coming winter.
they need to save energy before going through metamorphosis.
their food source dies from heat and a lack of rain in the summer.
they need rest from the period of intense activity after hatching.

Explanation:

To determine why Quino caterpillars go into diapause, we analyze each option:

• Option 1: The text doesn't mention winter cold as a reason for diapause.
• Option 2: There's no indication that diapause is for saving energy before metamorphosis.
• Option 3: If their food source (likely plants) dies in summer heat/drought, caterpillars would enter diapause as a survival mechanism when food is unavailable. This aligns with ecological survival strategies.
• Option 4: The text doesn't suggest rest from post - hatching activity is the reason.

Answer:

C. Their food source dies from heat and a lack of rain in the summer.