Chapter 5: Populations

Question 1

What is a population?

Answer 1

group of organisms that are the same species living in the same place and time

Question 2

What are populations dictated by?

Answer 2

natality (birthrate), mortality, immigration, and emigration

Question 3

What is a demographic?

Answer 3

study of statistics of human populations

Question 4

What limits exponential growth?

Answer 4

resources

Question 5

As a population increases what is depleted?

Answer 5

resources

Question 6

What is logistical growth

Answer 6

population’s growth decreases, stops, and sometimes plunges after a period of exponential growth

Question 7

What is the carrying capacity of an environment

Answer 7

maximum population number

Question 8

How do you find population density?

Answer 8

number of organisms per unit of measure

Question 9

What are the four limiting factors for growth rate

Answer 9

competition for resources, predation, parasitism & disease, and changes in environmental conditions