P&E pg 75-82 Trophic Levels

Why is the bottom layer of a trophic pyramid larger than the top layer?

• Not all energy and biomass are passed on to the next level.

• Because organisms at the top need less energy.

• Because producers need more energy to survive.

• Because decomposers prefer larger organisms.

Tags

NGSS.MS-LS2-3

Why doesn't 100% of energy pass from trophic level to trophic level?

• It gets used during an organism's lifetime

• Decomposers take the energy before it can be passed on

• Some energy goes back down to a lower trophic level

• Because energy can be created or destroyed

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is at the base of the trophic pyramid?

• Producers

• Primary Consumers

• Decomposers

• Secondary Consumers

Tags

NGSS.MS-LS1-6

What level consumer is the Coyote in this food web?

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

• Quaternary Consumer

Tags

NGSS.MS-LS2-2

What happens to the energy an organism uses during its life?

(to run, think, digest, pump blood, etc.)

• It gets passed into the environment

• It stays in the organism's body

• It gets passed onto whatever eats it

• It is destroyed and leaves the trophic pyramid forever

Tags

NGSS.MS-LS2-3

NGSS.MS-PS3-5

Why are 4th level consumers (Quaternary Consumers) so rare?

• There is usually not enough energy in an ecosystem to support them

• They are very picky eaters

• Tertiary consumers (like lions) are hard to hunt

• Quaternary consumers also like to eat producers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

True or False:

Living organisms are complex. Their bodies are made of matter.

• True

• False

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

True or False:

Dead organisms contain energy.

• True

• False

Tags

NGSS.MS-LS2-3

There are 1,000 pounds of producers in an ecosystem. How much biomass of secondary consumers would you expect to find there?

• 1000

• 100

• 10

• 1

Tags

NGSS.MS-LS2-3

How long can scorpions go without eating?

• A day

• A week

• A month

• A year

Tags

NGSS.MS-LS2-1