Sub Zero Temperatures - Ectotherms

Question 1

What is behavioral freeze avoidance?

Answer 1

behavioral adaptations to avoid freezing.

Question 2

What is a cryoprotectant?

Answer 2

Chemical that is used in the body to prevent freezing ie. Glycerol.

Question 3

A chemical that prevents freezing is called a __________.

Answer 3

Cryoprotectant

Question 4

Avoiding winter is called.

Answer 4

Behavioural Freeze Avoidance

Question 5

Wthat are hard cases that protect praying mantis eggs called?

Answer 5

Oothechas

Question 6

How does the Wooly Bear caterpillar avoid the cold?

Answer 6

Over winters as a larvae.

Question 7

Anything that preserves life is called _____.

Answer 7

cryoprotectant

Question 8

When no ice forms inside the body even if the liquid inside the body is below zero

Answer 8

Supercooling

Question 9

What is supercooling?

Answer 9

When no ice forms inside the Body even though the liquid is below 0 because of glycerol

Question 10

How do garter snakes avoid winter?

Answer 10

Hibernaculum’s

Question 11

How do angle winged butterflies survive winter?

Answer 11

Overwinter as adults with supercooling

Question 12

Moths overwinter as ______.

Answer 12

Pupa in a cocoon.

Question 13

What do Goldenrod Gall Flies do in the winter? What kind of adaptation is this.

Answer 13

Spend wither in plant Galls as grubs. this is a protective structure that blocks out harm and use freeze tolerance.

Question 14

What is a Gall? What animal uses these?

Answer 14

Abnormal plant growth around egg. Goldenrod Gall Flies.

Question 15

What is Freeze Tolerance?

Answer 15

The ability to survive winter with ice inside the body in nucleating sites between cells.

Question 16

What is the difference between Supercooling and Freeze Tolerance?

Answer 16

Freeze Tolerance = Ice inside body

Supercooling = No ice inside body

Question 17

Explain Freeze Tolerance

Answer 17

Cryoprotectants in cells with ice nucleating sites between them.

Question 18

Give and example of Freeze Tolerance.

Answer 18

Chorus Frogs freeze solid in the winter.

1. ice forms inbetween cells
2. nucleating protiens direct ice formation b/w cells
3. glycerol pumped into cells

Question 19

Name the 4 freeze tolerant frogs.

Answer 19

Wood Frog
Spring Peepers
Chorus Frog
Gray Tree Frog

Question 20

What is the advantage of coming out in early spring?

Answer 20

less predators

Question 21

Behavioural Freeze avoidance in turltes?

Answer 21

go to bottom of water sleep and drop heart rate in a dormant state

Question 22

What do painted turtles do?

Answer 22

overwinter as eggs and are freeze tolerant only as hatchings.