Earth's Ecosystems

The living and non living things in an area make up an

• population
• community
• ecosystem
• biotic factors

abiotic factors are

• living things in an ecosystem
• nonliving things in an ecosystem
• all of the living and non living things
• none of the above

All organisms of the same species that live in a particular area make up a

• community
• habitat
• population
• niche

All populations that live together in the same place make up a

• population
• niche
• habitat
• community

All living things in an ecosystem are

• abiotic factors
• biotic factors
• elements
• all of the above

Water is an example of a(n)___________ factor

• biotic

• abiotic

• blank

• control variable

Plants are a ________ factor

• abiotic
• biotic

A drought reduced the number of plants growing in an area. The number of deer in the area would decrease because of the lack of plants. What would happen to the population of coyotes that feed on the deer?

• The number of coyotes would increase
• The coyotes would not be affected because they do not eat plants.
• The number of coyotes would decrease

The constant movement of water in an ecosystem

• nitrogen cycle
• water cycle
• ecosystem cycle
• carbon cycle

Rain, sleet, hail, and snow are types of

• precipitation
• oxygen
• weather
• climate