Ecosystems and Biotic Factors

Which of the following shows an abiotic factor interacting with a biotic factor in the environment?

• Lamprey eels survive by attaching themselves to trout.

• Water temperature affects its oxygen level.

• Low light intensity affects the growth of forest pine trees.

• Gypsy moth caterpillars eat the leaves of apple tree.

Tags

NGSS.MS-LS2-3

Which of the following is a biotic component of a desert ecosystem?

• Soil

• Temperature

• Water

• Cactus

A Producer is a

• an organism that makes its own energy.

• an organism that breaks down dead plants and animals

• an organism that eats plants and animals for energy

• a food pyramid

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Biotic factors are ___________.

• non-living parts of an ecosystem

• living parts of an ecosystem

• things that once were alive, but now are dead

• not important parts of ecosystems.

Tags

NGSS.MS-LS2-2

A living or once-living organisms in an ecosystem is a

• population

• biotic factor

• abiotic factor

• community

Are rocks biotic or abiotic factors?

• biotic

• abiotic

Is water a biotic or abiotic factor?

• biotic

• abiotic

Tags

NGSS.MS-LS2-1

Is sunlight a biotic or abiotic factor?

• biotic

• abiotic

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

An ecosystem is made up of __________.

• living things only

• non-living things only

• both living and non-living things

Tags

NGSS.MS-LS2-3

Zebra

• Biotic (living)

• Abiotic (non-living)

Tags

NGSS.MS-LS1-1