Exploring Population Growth Factors in AP Biology

What is an example of a density independent factor?

• Hurricane

• Disease

• Competition

• Predation

How do density dependent factors affect population?

• They change birth and death rates based on population size.

• They are not influenced by population density.

• They only affect large populations.

• They affect populations regardless of size.

What might happen if there are many chipmunks in an area?

• More hawks may be attracted to the area.

• The hawks will leave the area.

• The chipmunks will stop reproducing.

• The chipmunks will migrate.

What does a graph showing the same birth and death rate regardless of population density indicate?

• Intrinsic factors

• Predator-prey relationships

• Density independent factors

• Density dependent factors

What is an example of a density dependent factor?

• Cold weather

• Hurricane

• Disease

• Earthquake

What does the term 'per capita' mean in population studies?

• Per group

• Per area

• Per individual

• Per species

How do intrinsic factors affect population regulation?

• They only affect plant populations.

• They are always constant.

• They are genetic factors that vary with population density.

• They are influenced by abiotic factors.

What happens to young sheep in a high population density area?

• They become stronger.

• They migrate to other areas.

• They produce fewer lambs.

• They produce more lambs.

What can cause predator-prey relationships to be more complex than they appear?

• The age of the predators

• Environmental factors and other predators

• Only the number of prey

• Only the number of predators

What is a possible reason for the boom-bust cycles in snowshoe hare populations?

• Only the presence of Lynx

• Harsh winters and other predators

• Constant food supply

• Stable environmental conditions