Ecosystems - 5th

Energy and other materials from dead organisms are recycled back into the soil by _____.

• producers

• consumers

• decomposers

• nonrenewable resources

_____ make their own food using energy from the Sun.

• plants

• animals

• fungi

• the Sun

animals are _____.

• consumers

• producers

• predators

• prey

_____ break down decaying material in an ecosystem.

• decomposers

• producers

• consumers

• plants

organisms that are eaten by other animals are called _____.

• prey

• predators

• herbivores

• carnivores

the amount of water in an ecosystem can be a limiting factor on the number of organisms living in that ecosystem

• true

• false

the job of decomposers is to break down dead plants and animals into useful substances. THis job is their _____.

• niche

• skill

• habitat

• adaptation

a _____ eats animals for energy.

• producer

• decomposer

• consumer

which of the following is NOT an abiotic factor?

• rocks

• air

• animals

• water

an example of interdependence is a plant's need for carbon dioxide that animals exhale and the food plants provide to the animals.

• true

• false