1.4 and 1.5 Review

Leveling off of the population after the maximum number the environment can support has been reached.

• Exponential

• Carrying capacity

• Linear

• Negative

Which of the following would likely be a limiting factor to a population?

• Abundance of food

• Living near a water source

• Presence of a natural predator

• Multiple sources for shelter

When rabbits were introduced to Australia, they began to breed exponentially. However, over time their population has begun to decrease due to a limiting factor.

What is most likely the limiting factor in this situation?

• Abundant space to breed and live

• No available predator in the area

• Rabbits choosing not to mate to conserve space

• Lack of available food

Which of the following demonstrates population growth when there is limited available water in an area?

• 
• 
• 

Habitat availability increases for a population. How would the carrying capacity of the prey change?

• The carrying capacity would increase as more resources become available.

• Carrying capacity occurs independent of factors in the environment.

• The carrying capacity would decrease as more resources became available.

• The carrying capacity is set in an environment and cannot change.

When Yellowstone National Park was created in the late 1800s, wolves were on the decline. The last wolves in Yellowstone were killed in 1926, but in the 1800s, there were between 100-160 wolves in the park. In 1995, gray wolves were reintroduced to the park.

Which graph (drawn in red) below shows a prediction of how the population would change if there was less water available in the ecosystem?

• 
• 
• 
• There would be no change to carrying capacity.

Match the following

• Predation

• 
• Parasitism

• 
• Symbiosis

• 
• Commensalism

• 

Biotic or Abiotic factor that restricts the growth of the population

• carrying capacity

• limiting factor

• abiotic factor

• biotic factor

In the graph to the right, what is the population of deer at the carrying capacity of the environment?

• 3

• 7

• 70

• 40

What is the carrying capacity of the graph?

• around 500
• more than 500
• less than 500
• around 600