True or False: Most matter remains within an ecosystem.

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Chemical reactions in ________ turn carbon dioxide into oxygen.

• the air

• producers

• consumers

• decomposers

Tags

NGSS.MS-LS1-6

Food materials move through an ecosystem in the form of...

• oxygen

• carbon

• carbon dioxide

• all of these

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

All of the energy that enters most ecosystems originally comes from _________.

• bacteria

• plants

• the sun

• fungi

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

True or False: Most of the energy that enters an ecosystem tends to remain in the ecosystem.

• True

• False

When a hawk consumes a rabbit, it receives _______ of the rabbit's energy.

• some

• most

• all

• none

Tags

NGSS.MS-LS2-3

True or False: Energy in an ecosystem generally moves in a cycle.

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

True or False: A food chain shows all of the organisms in an ecosystem.

• True

• False

The first organism in a food chain is always a...

• the sun

• a producer

• a first stage consumer

• a decomposer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A second stage consumer gets its energy from...

• the sun

• producers

• first stage consumers

• all of these

Tags

NGSS.MS-LS2-3