Ecology Quiz

Teacher's Name

• Ms. Ingraham

• Option 2

The diagram shows organisms in an ecosystem. Which arrow represents the energy from the sun?

-------------producers ------------- consumers ---------- decomposers -----------------        D                                     C                                 B                                          A

• D

• C

• B

• A

The Binomial System consists of ________________________________ names

• 1

• 2

• 3

• 4

A new animal introduced into a region may increase in numbers because of

• abundant sunshine.

• good hiding place.

• plentiful water.

• the absence of natural enemies

Conditions in an environment are most frequently upset by 

• disease

• erosion

• humans

• storms

Grasshoppers are eaten by frogs, crows and sea gulls. Which of the following can be used to represent this arrangement

• food chain

• food web

• parasite

• saprophyte

The gas which bacteria extract from the environment air and change into a form which plants can use is

• argon

• carbon dioxide

• nitrogen

• oxygen

Natural cycles are based on the interdependence between living organisms and their physical 

surrounding.Which natural cycle is dependent on decomposers?

• Carbon cycle

• nitrogen cycle

• oxygen cycle

• water cycle

Which group of organisms are decomposers?

• bacteria

• echinoderms

• molluscs

• protozoa

Which group of organisms are decomposers?

• bacteria

• echinoderms

• molluscs

• protozoa