Ecosystems

What is an example of living-nonliving interaction?

• Water falling on a rock.
• Wind making waves on a pond.
• A cat eating a mouse.
• A deer drinking water.

What might happen if you remove a primary consumer from the ecosystem?

• There would be more food for secondary consumers.
• The number of primary consumers would increase.
• The number of plants would increase.
• The number of secondary consumers would increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

• 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

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A consumer that hunts is called:

• a producer.
• an omnivore.
• a predator.
• a herbivore.

Which of the following best describes the small bird in the food web above?

• primary and secondary consumer
• secondary and tertiary consumer
• primary consumer only
• secondary consumer only

Tags

NGSS.MS-LS2-3

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism
• competition
• predator/prey
• parasitism

How many primary consumers are there in this food web?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-LS2-3

Which of the following is NOT a consumer?

• grass
• dog
• shark
• fish

Tags

NGSS.MS-LS2-2

• Producer
• Primary Consumer
• Secondary/Tertiary Consumer
• Decomposer

What part of the food chain is missing?

• Producer
• Consumer
• Decomposer
• Heterotroph