Scale

Question 1

What does body mass dictate?

Answer 1

How an organism

• Looks
• Feeds itself
• Moves
• Interacts w/ environment
• Interacts w/ species

Question 2

Comparative Physiology allows researchers to question:

Answer 2

• Origins of life
• Evolution of different body plans
• How numerous biological adaptations have arisen

Question 3

Why is comparing biological adaptations useful to scientists?

Answer 3

Can develop new medicines, velcro, sonar etc

Question 4

What is bone isometry?

Answer 4

Bone increases in size equally in all dimensions. The problem with this is strength is a function of the square of linear dimensions (cross section)

Question 5

What is bone allometry?

Answer 5

Change in proportions to growth. Body weight/mass is a function of the cube of linear dimensions. Bone strength is square of linear dimensions (cross section)

Question 6

What happens to area when increasing size?

Answer 6

Becomes proportionally smaller

Question 7

A decrease in SA/volume makes change in specific transport systems necessary, which ones?

Answer 7

Obtaining food - gut
Exchange of gases - gills or lungs
Transport around body - blood circulation

Question 8

What sourt of scale is used for metabolic rate against body mass?

Answer 8

Log scale

Question 9

What happens to metabolic rate as body mass increases?

Answer 9

Relative to mass, larger animals have a lower metabolic rate

Question 10

What is resolution?

Answer 10

The shortest distance between two points that they can be distinguished as separate points