Ecosystems

Which organism is a producer?

• frog

• mushroom

• grass

• lizard

Which is most responsible for recycling dead plants and animals in an ecosystem?

• water

• bacteria

• fish

• insects

How would the woodpecker population in a forest area most likely be affected if a housing development is built in that area?

• They would produce more offspring.

• They would change the color of their feathers.

• They would experience a decrease in available food.

• They would experience a decrease in competition.

In a grassland ecosystem, if the population of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem

• The ecosystem will be over populated with snakes

• There will be a decrease in the population of snakes in the ecosystem

• The nutrition of the soil in the ecosystem will decrease

• More types of plants will begin growing in the ecosystem

Which is an example of a decomposer?

• a hawk

• a mouse

• a flower

• a mushroom

As more people have moved to the beach, the sea turtle population has decreased. Which is most likely the cause of this decrease?

• tropical storms

• increase in predators

• habitat loss

• warmer temperatures

Which will most likely cause a decrease in predator populations?

• an increase in prey populations

• a decrease in prey populations

• a decrease in decomposers

• an increase in producers

Which kind of ecosystem is a combination of salt water and freshwater?

• an estuary

• an ocean

• a lake

• a pond

How are deer and bears classified?

• as decomposers

• as consumers

• as carnivores

• as producers

Which organism is a producer?

• a pine tree

• earthworm

• mushroom

• hawk