5. ECOSYSTEMS

An ecosystem is a group of living and non-living things that live in the same area. All elements of an ecosystem interact.

• True

• False

Producers transform the remains of living things into inorganic matter which plants then use as nutrients.

• True

• False

Decomposers make their own food and are also food for other living things.

• True

• False

Group of organisms of the same species within an ecosystem

• Population

• Community

• Limiting Factors

• Habitat

All the different populations that live together in an area

• Population

• Community

• Limiting Factors

• Habitat

The most important decomposers in ecosystems are...

• fungi, bacteria, insects, and worms

• snakes, hawks, sponges and algae

• protist, equinoderms, amphibians and reptiles

• amoebas, yeasts, arthropods and birds

In an ecosystem plants are

• Producers

• Consumers

• Decomposers

• Heterotrophs

In a forest a mushroom is...

• a decomposer

• a primary consumer

• a producer

• a tertiary consumer

In a forest, a rabbit is...

• a decomposer

• a primary consumer

• a producer

• a tertiary consumer

In an ecosystem humans are...

• consumers

• decomposers

• producers

• autotrophs