Populations Review

Which factor would NOT contribute to an exponential growth rate in a given population?

• lower death rate

• higher birth

• less competition

• reduced resources

This is an example of a(n) __________________________ growth curve.

• exponential

• logistic

• positive

• demographic transition

The maximum number of individuals of a particular species that a particular environment can support is its _______________.

• logistic growth

• carrying capacity

• age structure

• population density

____________ is the term for when individuals leave a specific population. 

• emigration

• immigration

• importation

• negative growth

____________ is when an individual joins a different population than what they were originally a part of. 

• emigration

• immigration

• importation

• negative growth

A large decrease in the sea otter population would most likely cause the size of which of the following populations to increase the most?

• sea star

• barnacle

• kelp

• phytoplankton

Which of the following statements best describes how an increase in population size could be related to a large surplus of food (more food than what is needed)?

• With an abundance of food, adults now outnumber predators.

• Since there is no competition for food, more females are healthy and the birth rate increases.

• With more available food, there are more predators and the death rate increases.

• Since they no longer need to hunt, some males become territorial and emigration increases.

What is happening to the population of Daphnia in the graph at the arrow?

• growing quickly

• reached carrying capacity

• growth has stopped

• growth is beginning to slow down

A limiting factor will cause a population to ____________.

• Increase

• Decrease

Competition, Predation, Parasitism, and Disease are all examples of Density-_____________ Limiting Factors.

• Independent

• Dependent