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Flashcards in science: chpt. 4 big quiz Deck (10):
0

When birthrate equals death rate

Zero population growth (ZPG)

1

The study of human population size, density, distribution, movement, and birth and death rates

Demography

2

The maximum number of individuals in a species that an environment can support

Carrying capacity

3

Use to describe the number of individuals moving away

Emigration

4

Use to describe the number of people coming into a population

Immigration

5

What are some density–independent factors?

Abiotic factors such as flooding, extreme heat or cold, tornadoes, hurricanes.

6

What are density–dependent factors?

Biotic factors such as predation, disease, parasites, and competition.

7

Number of organisms per unit area

Population density

8

The pattern of spacing in a population with in an area

Dispersion

9

What are the three types of dispersion?

1. Uniform
2. Clumped
3. Random

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