BJU 7th Life Science Chapter 18

Which of the following could not be considered an ecosystem?

• a trout

• a stream

• a national park

• a lake in a mountain valley

An ecosystem is made up of all the

• areas in the biosphere with similar climates

• abiotic and biotic factors that affect each other

• living organisms in an area

• nonliving factors in an area

Which of the following is (are) not part of the biotic factors in a lake?

• aquatic plants

• fish

• water

• bacteria in the mud

Tags

NGSS.MS-LS2-3

Climate is a part of which of the following factors in an ecosystem?

• abiotic

• biotic

• biome

• all of the above

Tags

NGSS.MS-ESS2-6

What mainly determines the climate of an ecosystem?

• the amount of sunlight and air

• the amount of sunlight and water

• types of plants and amount of water

• the types of plants and amount of soil

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

The abiotic environment of an ecosystem may contain all of the following except __________.

• altitude

• light

• plants

• soil

People are considered what part of an ecosystem?

• an abiotic factor

• a biotic factor

• a niche

• none of the above

Regions of the biosphere that share similar climates and kinds of living things are known as ________.

• biomes

• habitats

• ecosystems

• niches

Which of the following is (are) not part of the biosphere?

• mountain peaks

• Yellowstone hot springs

• the earths core

• the Arctic ocean

What is the largest land biome?

• coniferous forest

• deciduous forest

• desert

• tropical rainforest