7th Grade Food Webs

Which organism do the owl and the weasel compete for in the food web?

• Hawk

• Spider

• Grasshopper

• Shrew

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.

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.

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

A tick and a dog have this type of relationship.

• mutualism
• commensalism
• neutralism
• parasitism

A symbiotic relationship that involves species having to fight for something they both need or want

• competition
• predation
• commensalism
• parasitism

How many primary consumers are there in this food web?

• 1
• 2
• 3
• 4

What is a producer?

• an organism that gets energy from eating other organisms
• an organisms that uses sunlight to make its own food
• an organism that gets energy from eating dead organisms, non-living material or waste
• an organism that uses chemical energy to make its own food