_______________ is the number of organisms per unit area.

_______________ is the separation of an ecosystem into small pieces of land.

_______________ occurs when there are few or no limits placed on it by the environment.

_______________ is the term ecologists use to describe the number of individuals moving into a population.

_______________ is the term ecologists use to describe the number of individuals moving away from a population.

_______________ produce as many offspring as possible in a short period of time in order to take advantage of some environmental factor.

Which of the following is a characteristic that all populations have?

Plant growth is an example of a ____________________________.

Which of the following is NOT a type of dispersion?

Fires are an example of an ____________________________.

Predation is an example of a ____________________________.

Which of the following is a type of dispersion?

Disease is an example of a ____________________________.

________________ is the gradual process of species becoming extinct.

A ____________________________ is any factor in the environment that depends on the number of members in a population.

________________ occurs when population growth stops increasing when an environment's carrying capacity has been reached.

Population growth stops increasing when an environment's ____________________________ has been reached.

The ____________________________ explains how fast a given population grows.

________________ produce as many offspring as possible in a short period of time in order to take advantage of some environmental factor.

________________ is the excessive use of species that have economic value.

________________ is the pattern of spacing of a population within an area.

Which of the following is a type of dispersion?

Which of the following is a type of dispersion?

________________ is an event in which a large percentage of all living species become extinct.

________________ is the pattern of spacing of a population within an area.

________________ is the term ecologists use to describe the number of individuals moving away from a population.

Drought is an example of an ____________________________.

__________________ is the separation of an ecosystem into small pieces of land.

________________ is the number of organisms per unit area.

________________ occurs when fertilizers, animal waste, sewage or other substances rich in nitrogen and phosphorus flow into waterways.

Which of the following is a type of dispersion?

Which of the following is a type of dispersion?

________________ is an event in which a large percentage of all living species become extinct.

Tornadoes are an example of an ____________________________.

________________ occurs when population growth stops increasing when an environment's carrying capacity has been reached.

________________ are generally larger organisms that produce few offspring and their population numbers tend to be consistent year round.

Which of the following is NOT a type of dispersion?

Population growth stops increasing when an environment's ____________________________ has been reached.

Which of the following is NOT a characteristic that all populations have?

Which of the following is a characteristic that all populations have?

________________ are all materials and organisms found in the biosphere.

________________ is the birthrate, or number of individuals born in a given time period.

Competition is an example of a ____________________________.

________________ is the gradual process of species becoming extinct.

A ____________________________ is any factor in the environment that does not depend on the number of members in a population.

Extreme heat and cold is an example of an ____________________________.

________________ is the increasing concentration of toxic substances in organisms as trophic levels increase in a food chain or web.

________________ occurs when there are few or no limits placed on it by the environment.

A ____________________________ is any factor in the environment that depends on the number of members in a population.

The __________________ is one of the main determinants of spatial distribution.

________________ are generally larger organisms that produce few offspring and their population numbers tend to be consistent year round.

The __________________ explains how fast a given population grows.

Parasites is an example of a ____________________________.

______________ is the number of deaths that occur in the population during a given time period.

Hurricanes are an example of an ______________________________.

______________ is the term ecologists use to describe the number of individuals moving into a population.

A __________________________ is any factor in the environment that does not depend on the number of members in a population.

______________ increases when population density increases.

______________ increases when population density increases.

________________ is the increasing concentration of toxic substances in organisms as trophic levels increase in a food chain or web.

______________ is the number of deaths that occur in the population during a given time period.

Which of the following is an example of a density-dependent factor affecting population size?

What term describes the maximum number of individuals an environment can support over time?

Which process results in the introduction of new individuals into a population from another area?