Unit 2.5 metabolism and adverse conditions

Question 1

What are some of the methods by which an organism will be able to survive adverse conditions?

Answer 1

• Hibernation
• Aestivation
• Daily Torpor

Question 2

What happens in organisms that survive adverse conditions by dormancy?

Answer 2

During dormancy there is a decrease in
- metabolic rate
- heart rate
- breathing rate
-body temperature

Question 3

What is meant by the term dormancy?

Answer 3

Dormancy is a part of an organisms’ life cycle that allows survival during a period where costs of continued metabolic activity would be too high to maintain, for this reason during dormancy the metabolic rate amongst other things can be reduced to save energy.

Question 4

What is the difference between predictive and consequential dormancy?

Answer 4

Predictive dormancy occurs before the onset of adverse conditions

Consequential dormancy occurs after the onset of adverse conditions

Question 5

What is meant by hibernation?

Answer 5

A form of predictive dormancy caused by the onset of low temperatures

Question 6

What is Aestivation?

Answer 6

A form of consequential dormancy which allows organisms to survive periods of high temperature or drought

Question 7

What is daily torpor?

Answer 7

Daily torpor is a period in a 24 hour cycle where an organism with high metabolic rates, lowers its activity

Question 8

What is it called when an organism avoids adverse conditions?

Answer 8

Avoiding adverse conditions is known as migration

Question 9

What is migration?

Answer 9

Migration is a process that avoids metabolic adversity by expending energy to relocate to a more suitable environment

Question 10

What are the types of migratory behavior?

Answer 10

• Innate
• Learned
  Migratory behavior can be both innate and learned

Question 11

What are some of the techniques used to study long distance migration?

Answer 11

• Satellite tracking
• Leg rings