Ecosystems - General

Which best explains why many kinds of plants and animals can live together in an ecosystem?

• The plants and animals are all part of a food chain and depend on each other to live.
• Plants and animals are interdependent of one another.
• One species may overpopulate, killing all plant life.
• Over population of a species results in a biodiversity.

_______ are consumers that eat only meat.

• Herbivore
• Omnivore
• Carnivore

________ are consumers that eat plants and meat.

• Herbivore
• Omnivore
• Carnivore

Which organism make their own food through the process of photosynthesis? 

• decomposer
• consumer
• herbivore
• producer 

Field mice eat corn. Which would most likely happen if the field mouse population grew?

• There would be more corn to feed the field mice.
• There would be less corn due to the mice eating it.
• The habitat would get overpopulated because the mice woudl eat too much.

Which describes a decomposer?

• an organism that eats only plants
• an organism that makes its own food
• an organism that breaks down dead matter
• an organism that recieves energy from the sun

What would most likely happen if an ecosystem no longer received sunlight?

• The number of herbivores would increase
• The number of plants would increase
• all organisms would adapt
• All living organisms would eventually die

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All food chains_____________________

• have more consumers than producers
• produce and use same amount of energy
• begin with a producer
• are unhealthy 

How does energy enter an ecosystem? 

• sunlight
• soil 
• animals 
• invasive species 

A lion, captures and eats other animals. What is he considered? 

• prey
• predator
• producer 
• healthy