Science Review 3

An environment that provides the things a specific organism needs to live, grow, and reproduce is called its:

• home

• environment

• habitat

• community

These are the living, or once-living, parts of a habitat:

• habitat

• abiotic factors

• ecosystem

• biotic factors

These are non-living parts of a habitat:

• habitat

• abiotic factors

• ecosystem

• biotic factors

Group of organisms that can mate with each other and produce offspring that can also reproduce:

• ecosystem

• habitat

• species

• community

Community of organisms living in a particular area, along with their non-living environment:

• ecosystem

• habitat

• species

• community

Populations change in size when:

• new members join the population

• they eat a lot of food

• nobody takes care of them

• they play a lot

Counts the number of births in a population over a certain amount of time:

• death rate

• population density

• birth rate

• emigration

Counts the number of deaths in a population over a certain amount of time:

• death rate

• population density

• birth rate

• emigration

When the death rate is greater than the birth rate, the population will generally:

• increase

• decrease

• remain the same

• die

When the birth rate is greater than the death rate, the population will generally:

• increase

• decrease

• remain the same

• die