Ecosystems Review

Which of the following organisms is a herbivore.

• butterfly
• snake
• fox
• ladybird

The owl receives energy from which organisms?

• grasshopper and mouse
• mouse and rabbit
• rabbit and butterfly
• butterfly and frog

Name the producers in this food web.

• seagull and fish
• penguin and crab
• phytoplankton and seaweed
• seaweed and zooplankton

Which one is NOT an example of a decomposer?

• mushroom
• leaves
• mold
• worm

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

• Hawk
• Spider
• Grasshopper
• Shrew

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.

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

• mutualism
• competition
• predator/prey
• parasitism

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

All energy on Earth ultimately comes from what source?

• Water
• Sun
• Consumers
• Oxygen