Living Systems

The diagram above shows a food chain for a marine ecosystem. Which of the following organisms best completes boxes X and Y to show how energy flows through this food chain?

• X is seaweed; Y is a crab

• X is seaweed; Y is water

• X is a shark; Y is seaweed

• X is a catfish; Y is seaweed

Tags

NGSS.MS-LS2-3

All living organisms must take in energy in order to grow and survive. For animals, this energy comes from

• food they eat.

• moonlight.

• sounds they hear.

• motors in cars they drive.

Tags

NGSS.MS-LS2-3

The diagram above shows a food chain for a tundra ecosystem. Which of the following organisms best completes boxes X and Y to show how energy flows through this food chain?

• X is an arctic hare; Y is a reindeer

• X is an arctic hare; Y is the Sun

• X is grass; Y is an arctic hare

• X is the Sun; Y is an arctic hare

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

The diagram above shows a food chain for a prairie ecosystem. Which of the following organisms best completes boxes X and Y to show how energy flows through this food chain?

• X is the Sun; Y is the grass

• X is a rabbit; Y is the Sun

• X is an owl; Y is the Sun

• X is the Sun; Y is a coyote

Tags

NGSS.MS-LS2-3

The diagram above shows a food chain for a desert ecosystem. Which of the following organisms best completes boxes X and Y to show how energy flows through this food chain?

• X is an ant; Y is a cactus

• X is a cactus; Y is grass

• X is a cactus; Y is a mouse

• X is a beetle; Y is a cactus

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why do all organisms need food?

• to make them look colorful

• to help them feel full

• to give them energy

• to play with

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

The Sun provides energy. Plants use the energy to make food. How do some animals get energy? *

• Animals get energy by eating the plants.

• All animals get energy by hibernating.

• Animals absorb the Sun's energy and make their own food

• Animals do not need energy.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

The diagram above shows a food web. In this food web, which of the following is necessary in order for all of the organisms to survive?

• . caterpillar

• fox

• partridge

• Sun

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Through the process of photosynthesis, producers such as phytoplankton change sunlight into sugars. Cedric redraws a food chain to show one more level before the phytoplankton. What would this new level be?

• plants

• zooplankton

• the Sun

• water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a decomposer?

• Organism that makes its own energy

• Organism that breaks down dead organisms

• Organism that eats other organisms for food and energy

Tags

NGSS.MS-LS2-3