Food chains, Food Webs, and Energy Pyramids

Which of the following is a herbivore?

• cricket
• frog
• hawk
• shrew

How many carnivores are shown in this food web?

• 6
• 4
• 5
• 3

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

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 primary consumer eats

• producers
• animals
• secondary consumers

Tags

NGSS.MS-LS2-2

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS2-3

Which of these is always located at the bottom of an energy pyramid?

• Producer
• Second-Level Carnivores
• Herbivores.
• First-Level Consumers.

Tags

NGSS.MS-LS2-3

How many herbivores are in this web?

• 1
• 2
• 3
• 4

How many producers?

• 1
• 2
• 3
• 4