Question

beadnose tab b
each winter brown bears in north america spend an average of 5 months inside of dens in a low activity state known as hibernation. they experience drastic body changes during this time. they also do not eat, drink, defecate (poop), or urinate (pee). it is a wonder that the bears can survive each winter in this state without performing these essential body functions! the bear in the images below is named beadnose and lives in alaska. you can see how her body changes as she gets ready for hibernation.
this is bear #409, nicknamed “beadnose”, from kalm national park in alaska (both photographs are of the s
during hibernation, how do bears stay alive? (choose the two best responses)
a they eat small amounts during hibernation and break down the food quickly for energy.
b they use less energy during hibernation.
c they absorb food molecules from the air.
d they use fat stored in their body as fuel for cellular respiration.
e they use more energy to keep their bodies warm so they need lots of stored fat

Explanation:

• Option A: Bears don't eat during hibernation, so A is incorrect.
• Option B: Hibernation is a low - activity state, so bears use less energy, this is correct.
• Option C: Bears don't absorb food molecules from the air during hibernation, so C is incorrect.
• Option D: During hibernation, bears use fat stored in their body as fuel for cellular respiration to get energy, this is correct.
• Option E: Bears are in a low - activity state during hibernation and don't use more energy to keep warm, so E is incorrect.

Answer:

B. They use less energy during hibernation, D. They use fat stored in their body as fuel for cellular respiration.