AP Bio Insta-Review Topic 8.4: Effect of Density of Populations

Which variable represents carrying capacity?

• dN/dt

• N

• K

• r

Tags

NGSS.HS-LS2-1

As K approaches N, what happened to the dN/dt?

• Decreases, then increases

• Decreases, then remains constant

• Increases, then decreases

• Increases, then remains constant

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

When is dN/dt = 0?

• N < K

• N > K

• N = K

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-6

Which type of factor is an earthquake?

• Density dependent

• Density independent

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS3-1

Which type of factor is a disease?

• Density dependent

• Density independent

Tags

NGSS.HS-LS4-5

If N = 500, K = 250, and r = 0.01, solve for dN/dt?

• -500

• -50

• 50

• 500

Which of the following does not represent density?

• Number of bacteria in a 10 mL of nutrient media

• Number of elephants in 1 acre of savanna

• Number of offspring in each generation

• Number of fish in a square mile

What happens to the growth rate as population size approaches carrying capacity?

• Decreases

• Increases

• Stay the Same

Tags

NGSS.HS-LS2-1

How do density dependent factors affect growth rate?

• As population size increases, growth rate decreases

• As population size increases, growth rate increases

• As population size increases, growth rate stays the same

Tags

NGSS.HS-LS2-6

How do density independent factors affect growth rate?

• As population size increases, growth rate decreases

• As population size increases, growth rate increases

• As population size increases, growth rate stays the same