Lecture 1

Question 1

What is so important about animal physiology?

Answer 1

It integrates all levels of organization

Biochemical -> Cellular -> Whole organism -> Evolutionary and Ecological

Question 2

What are the two ways a physiologist will approach this?

Answer 2

1. Proximate/ Mechanistic Approach
2. Ultimate/Evolutionary Approach

Question 3

What are the 5 time frames of physiological changes?

Answer 3

1. Acute changes: short-term changes of animal after environmental changes
2. Chronic changes: long-term changes in the physiology after exposure to changes, after extended periods of time
3. Evolutionary changes: alteration of gene frequencies through generations
4. Developmental Changes: maturation of the animal
5. Periodic biological clocks: Repeating patterns, internal clock.