Sub Zero Temperatures - Endotherms

Question 1

Define Dormancy

Answer 1

Lower body temp and go into inactive sleep. Different levels of dormancy.

Question 2

Endotherms don’t ______.

Answer 2

Freeze as easily.

Question 3

Define Lethargy

Answer 3

Light state of dormancy where animal is easily roused. Body temperature dosent drop as much as it would in hibernation. Heart rate slows.

Question 4

Racoons do what in winter.

Answer 4

Go into hollow trees or den and become lethargic.

Question 5

Define Torpor

Answer 5

Deep sleep where body temperature and heart rate decrease. animals wake every few days to eat and defecate.

Question 6

Black Bears do what in winter.

Answer 6

Go into Torpor with low heart rates, and dropped but still high temperature and are woken up easily to be responsive to danger.

Question 7

What is a Tappen?

Answer 7

bear rectal plug so they done foul their den in winter

Question 8

What is a bears nest?

Answer 8

when bears create big tangles of branches when eating a bunch of food before winter.

Question 9

Hibernation

Answer 9

long term dormancy in which heat, respiratory and metabolic rates drop very low and body temp drops below 10 degrees C.

Question 10

Define a true hibernator and state the two true hibernators.

Answer 10

Long term dormancy, both heart rate and body temp are very low.

Heart rate below: 10
Body temp below: 10

Groundhogs + Jumping Mice