Unit 3

What is population density?

• How populations are spaced out

• Number of individuals per unit area

• Where populations live

• Clumped

Population distributions: Clumped, random, and ___________.

• Stacked

• Together

• Uniform

• Spaced out

Ages, numbers of males, and number of females is:

• Population

• Distribution

• Density

• Age structure

Individuals moving into an area.

Individuals exiting an area.

What does an exponential graph look like?

• J-curve

• S-curve

• It goes straight up

• Slant line

Tags

NGSS.MS-PS3-1

Pick 2: What are the 2 conditions needed for exponential growth?

• High predation

• Unlimited resources

• Ideal conditions

• Low carrying capacity

How does carrying capacity of an environment affect populations?

• It doesn't

• Limits how many individuals can survive in an environment

• Makes predation easier

• Allows exponential growth to occur

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A limiting factor that depends on population density.

• Density-dependent limiting factor

• Density-independent limiting factor

• Dispersion-dependent limiting factor

• Dispersion-independent limiting factor

Which of the following is NOT a density-dependent limiting factor?

• Competition

• Predation

• Disease

• Volcanic eruption

Tags

NGSS.MS-LS2-4