Which of the following is not a physiological mechanism regulated by timing? Circadian rhythms in eukaryotes

Hibernation of animals during winter

Photoperiodism to direct the flowering of plants

Viral reproduction in a host cell

A skunk living in the northern part of the United States is exposed to extreme cold and food shortages during the long winter months. Based on the climate, what do you predict the skunk's innate response to these environmental factors will be?

Increase cellular respiration and ATP production

Estivate with a period of dormancy until the warmer weather arrives

Migrate to regions of warmer weather

Slow down its metabolic rate and lower its body temperature