Food Webs and Energy Pyramids

An organism that recycles nutrients through an ecosystem by consuming dead plants or animals is known as a(n)...

• Herbivore

• Apex Predator

• Producer

• Decomposer

An organism that needs to eat other organisms to obtain energy is known as a:

• Autotroph
• Producer
• Consumer
• Mutualist

Tags

NGSS.MS-LS2-3

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What type of organism is at the beginning of every food chain?

• predator

• carnivore

• producer

• herbivore

Where do green plants get most of the energy they need to make their own food?

• carbon dioxide

• oxygen

• sunlight

• water

Tags

NGSS.MS-LS2-3

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The position that an organism occupies within a food chain is called its...

• Trophic Level

• Prey Drive

• Net Productivity

• Web Status

Tags

NGSS.MS-LS2-3

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What do the arrows in a food web represent?

• mass

• energy flow

• matter

• organisms

Tags

NGSS.MS-LS2-3

Which of these organisms would receive energy from the snake?

• Plant
• Rabbit
• Mouse
• Hawk

Tags

NGSS.MS-LS2-3

In the food web shown, the snail would be considered...

• primary (1st) consumer

• secondary (2nd) consumer

• tertiary (3rd) consumer

• producer

Tags

NGSS.MS-LS2-3

Which of the following would be the most likely effect, if there were a sudden INCREASE in the cricket population (primary 1st consumer)?

• There would be a decrease in the small bird population.

• There would be a decrease in the grass/flowers population.

• There would be a decrease in the mice population.

• There would be an increase in the grass/flowers population.

Tags

NGSS.MS-LS2-1

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Several owls live in a forest. The owls prey on mice. Hawks also prey on mice. Which might happen if several hawks move to the forest where the owls live?

• The number of owls will increase, and the number of hawks will decrease.

• The number of mice will increase, and the number of owls will decrease.

• The number of owls and hawks will increase.

• The number of owls and mice will decrease.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4