High Latitudes

Question 1

What does albedo mean?

Answer 1

The proportion of light reflected from a surface

Question 2

Polar gigantism

Answer 2

Biochemical processes relating to growth and influenced by temperature: slower growth occurs in colder water and sexual maturity is delayed - larger adult body size

Question 3

Bergmann’s rule:

Answer 3

Among warm-blooded animals, body mass typically increases with increasing latitude _ ie. Colder climates

Question 4

Allen’s rule:

Answer 4

Animals in cold climates need to conserve as much energy as possible: the greater the exposed area, the greater the loss of mat and therefore energy