Multiple Choice
Scenario
Carrying Capacity
100
What is a limiting factor?
A. Something that helps a population grow
B. A factor that restricts the size of a population
C. A type of predator
D. A type of ecosystem
B
100
A forest has a population of 200 deer. Over several years, the population grows to 500 deer. Soon there is not enough food and many deer begin to starve.
a. What limiting factor is affecting the deer?
Amount of food
100
2,000
200
If a forest has very little sunlight reaching the ground, what will most likely happen?
A. All plants will grow faster
B. Some plants will not be able to grow well
C. Animals will leave immediately
D. The soil will disappear
B
200
A severe hurricane destroys many trees and plants in a coastal ecosystem.
a. Is this density-dependent or density-independent?
Density Independent
200
What does Carrying Capacity mean?
Maximum number of individuals of a species that an environment can support over time
300
Which factor could limit the growth of a rabbit population?
A. More grass growing
B. More sunlight
C. Increase in foxes
D. Larger habitat
C
300
A rabbit population grows quickly in a meadow with plenty of grass. After several years, the rabbit population levels off and stays about the same size.
a. What concept explains why the population stopped growing?
Carrying Capacity
300
Two main resources that can limit carrying capacity for animals are these.
Food, water etc
400
A population of deer exceeds its environment’s carrying capacity. Which outcome is most likely first?
A. Death rate increases due to starvation
B. All deer leave the area
C. Birth rate increases
D. Predators disappear
A
400
A cold winter causes many small birds to die in a park. The next spring, the population grows again.
a. What type of limiting factor caused the deaths?
b. Will this factor affect the population differently if it was larger or smaller? Why or why not?
Weather
No, the amount of birds would not matter
400
Carrying capacity is always a fixed number and never changes.
True or False
False
500
Which is an example of an abiotic factor that limits population growth?
A. Disease
B. Predation
C. Competition
D. Prolonged drought
D
500
In a desert, cacti grow slowly. During a long drought, many die.
a. Identify the limiting factor.
b. Is it density-dependent or density-independent?
Water
Independent
500
Carrying capacity is influenced by these types of limiting factors that depend on population size?
Density Dependent