Exam 3

Question 1

Evolution (Biological)

Answer 1

Change in allele frequencies of a population through time

Question 2

Inhibition model

Answer 2

Each species actively inhibitis other species from colonizing

Question 3

Keystone Predator

Answer 3

Specializes on a competitively dominant prey (Diversity up)

Question 4

Random Predator

Answer 4

Consumes prey as they are encountered (Diversity down)

Question 5

Switching Predator

Answer 5

Consumes most common prey species

Question 6

Rare Species

Answer 6

Eats rare species

Question 7

Pleiotropy

Answer 7

One gene that codes for multiple traits

Question 8

Mid-Domain Effect

Answer 8

Random placement of ranges leads to peak diversity in the center of a bounded domain

Question 9

“The world is green”

Answer 9

Predators keep our world green as they consume plant-eating herbivores that’d wipe out all plants

Question 10

Heterozygous

Answer 10

Two different alleles on one gene

Question 11

Intermediate disturbance hypothesis

Answer 11

When environments are disturbed a mid amount, diversity thrives the most.

Question 12

Bottom-up Control

Answer 12

Driven by the presence or absence of the producers in the ecosystem

Question 13

Statistical P value

Answer 13

Probability of making a type 1 error by rejecting Ho

Question 14

Polygenic trait

Answer 14

Lots of genes that code for one trait

Question 15

Chronosequence

Answer 15

A set of sites that differ only in time since disturbance

Question 16

Trophic Cascade

Answer 16

Reciprocal changes in abundance at different levels of a food chain