Matter Cycles and Energy Flow in Ecosystems

A producer is an organism that...

• breaks down waste

• eats other animals

• a herbivore

• makes its own food

If an organism uses photosynthesis to make its energy, it is a _____.

• tertiary consumers

• producer

• primary consumer

• secondary consumer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

As energy makes its way up the food pyramid only ______ of energy from one organism gets passed on to the next organism.

• 10%

• 20%

• 30%

• 40%

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which is the primary consumer in this food chain?

• rabbit

• grass

• snake

• hawk

Tags

NGSS.MS-LS2-3

If there is 10,000 kJ of energy available in the producer population, how many kilojoules of energy would be found in the carnivore population?

• 10,000 kJ

• 1,000 kJ

• 100 kJ

• 10kJ

Tags

NGSS.MS-LS2-3

In the energy pyramid here, which organisms have the most energy available?

• Producers

• Carnivores

• Herbivores

• Top Predator

Tags

NGSS.MS-LS2-3

Organisms that break down wastes and dead organisms and return the raw materials to the environment are called

• Consumers

• Decomposers

• Producers

• Scavengers

Tags

NGSS.MS-LS2-3

A wolf eats a rabbit, that just ate some berries. What would you call the rabbit?

• Producer

• Omnivore

• Primary Consumer

• Secondary Consumer

Tags

NGSS.MS-LS2-3

What is the role of a producer?

• Use sunlight to make food

• Gain energy from eating other organisms

• Keep other species from overpopulating

• Breaking down dead stuff 

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

An energy pyramid represents what?

• How much sunlight is available for the ecosystem to use.

• The available amount of energy in each trophic layer in an ecosystem

• How much energy is needed to build a pyramid.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3