Which of the following adaptations alpine animals survive the cold winter? . a.. large lungs. b.. higher levels of hemoglobin. c.. hibernation. d.. large legs, ears, and tails.

The correct answer would be c. hibernation.

Adaptations of alpine animals to survive cold winter may include migration to warmer places, hibernation, and covering the body with excess fat and fur (helps in insulation).

Hibernation is the state of dormancy or inactivity practiced by animals and plants in order to survive the winter season.  

During this state, animals lower down their metabolic rates, slow down heart rate and breathing, and lower down the temperature of the body. It helps in preventing energy loss during the cold season and when sufficient food is not available.

The time-period of hibernation state is variable from days to months. For example, bears may hibernate for six months.

Higher levels of hemoglobin helps alpine animals survive the cold winter. The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.