Flow of Energy in Ecosystems

Which of the following definitions bests describes a PRODUCER?

• Any kind of green plant that, through the process of photosynthesis, makes its food by taking sunlight and using the energy to make sugar.

• An organism that requires energy that it obtains by eating other organisms.

• An organism that requires energy that it obtains by breaking down dead or decaying organic materials.

• The major source of energy for organisms and the ecosystems of which they are a part.

Tags

NGSS.MS-LS1-6

Which of the following definitions bests describes a CONSUMER?

• Any kind of green plant that, through the process of photosynthesis, makes its food by taking sunlight and using the energy to make sugar.

• An organism that requires energy that it obtains by eating other organisms.

• An organism that requires energy that it obtains by breaking down dead or decaying organic materials.

• The major source of energy for organisms and the ecosystems of which they are a part.

Which of the following definitions bests describes a DECOMPOSER?

• Any kind of green plant that, through the process of photosynthesis, makes its food by taking sunlight and using the energy to make sugar.

• An organism that requires energy that it obtains by eating other organisms.

• An organism that requires energy that it obtains by breaking down dead or decaying organic materials.

• The major source of energy for organisms and the ecosystems of which they are a part.

Which of the following definitions bests describes the SUN?

• Any kind of green plant that, through the process of photosynthesis, makes its food by taking sunlight and using the energy to make sugar.

• An organism that requires energy that it obtains by eating other organisms.

• An organism that requires energy that it obtains by breaking down dead or decaying organic materials.

• The major source of energy for organisms and the ecosystems of which they are a part.

Tags

NGSS.MS-LS2-3

Which of the following is an alternative term used for a PRODUCER - an organism that can produce its own food using light, water, carbon dioxide, or other chemicals?

• AUTOTROPH

• HETEROTROPH

Which of the following is an alternative term used for a CONSUMER - an organism that consumes producers or other consumers?

• AUTOTROPH

• HETEROTROPH

A FOOD CHAIN is a series of steps in which organisms _________ energy by eating other organisms or by being eaten - Which of the following best fits the missing word?

• hold

• remove

• transfer

• catch

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Choose 2 ways that a food chain differs from a food web?

• Food chains are a single path showing how energy moves in one direction. It is simpler than a food web.

• Food chains are complex showing multiple energy pathways.

• Food chains make up food webs.

• Food webs make up food chains.

Tags

NGSS.MS-LS2-3

The TROPHIC LEVEL of an organism is the position it occupies in a food chain, food web or ecological pyramid. The transfer of food (or energy) takes place from one organism or trophic level to another organism or trophic level.

Which tropic level does the mouse occupy?

• PRODUCERS

• PRIMARY CONSUMERS

• SECONDARY CONSUMERS

• TERTIARY CONSUMERS

Tags

NGSS.MS-LS2-3

The TROPHIC LEVEL of an organism is the position it occupies in a food chain, food web or ecological pyramid. The transfer of food (or energy) takes place from one organism or trophic level to another organism or trophic level.

Which tropic level does the grass occupy?

• PRODUCERS

• PRIMARY CONSUMERS

• SECONDARY CONSUMERS

• TERTIARY CONSUMERS

Tags

NGSS.MS-LS2-3