Physiology Chapter 1

Question 1

Animal Physiology

Answer 1

Study of animal function
-Principle of understanding health and disease
-Fundamentals of biological processes at all levels of organization
-Includes influence of the environment on encouraging natural selection

Question 2

Pacific Salmon Evolution Example

Answer 2

Location of the fish influences genetic variation over time due to adaptations to environment

Question 3

Pacific Sample Chemistry and Physics Example

Answer 3

Movements like swimming obey laws of chemistry and physics

Question 4

Pacific Sample Systems Example

Answer 4

Multiple levels of organization must work together for coordinated swimming

Question 5

Mechanism

Answer 5

What mechanism is used by which a function is accomplished

Question 6

What does mechanism refer to?

Answer 6

refers to the components of the animal and how interaction between components allow for performance

Question 7

Origin

Answer 7

How did mechanism come to be

Question 8

What does origin refer to?

Answer 8

Refers to the mechanisms being the products of evolution and thus the reason for the existence of mechanism stems the evolutionary processes

Question 9

Natural selection is a key for what?

Answer 9

The process of evolutionary origin

Question 10

natural selection

Answer 10

increase in the frequency of genes that produce phenotypes
-genes can increase in frequency over time

Question 11

adaptive significance

Answer 11

infers the mechanism is an asset for survival and reproduction
-those genes that increase infrequency likely arise from necessary adaptations

Question 12

Aquatic eyes retina

Answer 12

Retina packed with mainly photoreceptors each with their own axon

Question 13

Photoreceptors in squid and and octopuses point toward _________

Answer 13

light

Question 14

Photoreceptors send visual signals directly to the brain in __________

Answer 14

multiple optic nerves