Ecosystems Review

What is the source of energy for this ecosystem?

• rocks

• carbon dioxide

• sun

• oxygen

Sun, oxygen, rocks, and carbon dioxide are non-living factors known as what?

• biotic

• abiotic

• decomposers

• toads

A white-tailed deer eats grasses and other plant parts. What is the energy role of the whit-tailed deer?

• carnivore

• herbivore

• omnivore

• decomposer

An Alaskan brown bear eats wild berries, leaves, fish, and small rodents. What is the energy role of the Alaskan brown bear?

• carnivore

• herbivore

• omnivore

• decomposer

An African lion eats antelope and other grazing animals. What is the energy role of the African lion?

• carnivore

• herbivore

• omnivore

• decomposer

A shelf fungus absorbs nutrients from the wood of dead trees. What is the energy role of the shelf fungus?

• carnivore

• herbivore

• omnivore

• decomposer

All of the plants and animals living in the same area make up a

• population

• species

• habitat

• community

A cactus plant, a snake, the soil, and the air in a given area make up the

• species

• community

• ecosystem

• population

Organisms are classified as producers or consumers according to the way they

• obtain energy

• release wastes

• produce offspring

• move from place to place

An animal that eats both plants and animals is classified as

• an herbivore

• an omnivore

• a producer

• a consumer