Lecture 12 & 14

Question 1

Types of selection

Answer 1

Directional
Disruptive
Stabilizing

Question 2

Stabilizing selection

Answer 2

Average has best advantages

Ex. Human birth rate

Question 3

Disruptive selection

Answer 3

Both ends of spectrum have advantages.

Leads to speciation

Question 4

Direction selection

Answer 4

One end of spectrum has desirable trait

Question 5

Genetic drift

Answer 5

Change of alleles in a population due to change. Bottleneck effect
Ex. American bison

Question 6

Mechanisms of evolution

Answer 6

1. natural selection
2. genetic drift
3. Sexual selection
4. Gene flow

Question 7

Ecology

Answer 7

Scientific study of the relationships between organisms and between organisms and their environment

Question 8

Organismal ecology

Answer 8

Adaptions and limitations of individuals of a population

Question 9

Population ecology

Answer 9

Study of Relationships between same species

Question 10

Community ecology

Answer 10

Relationships between different populations of organisms

Question 11

Ecosystem ecology

Answer 11

The study of the relationships between communities and abiotic environment factors

Question 12

Biomes

Answer 12

Environmental zones

Ex. Tundra, rainforest, savanna