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Science Study Guide

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What is an ecosystem?

a)

A biological community of interacting organisms and their physical environment

b)

An organism that can produce its own food

c)

An ecosystem is another word for food chain

d)

A bunch of food chains connected together

2.

What word describes this definition?: organisms that can make (produce) their own energy/food.

a)

Consumers

b)

ecosystem

c)

producers

d)

food chain

3.

Which vocab word describes this definition?: organisms that get their energy/food by eating (consuming) other organisms.

a)

Producers

b)

Consumers

c)

Ecosystem

d)

Food chain

4.

What is a decomposer?

a)

Decomposers do not exist

b)

trees

c)

organisms that get their energy/food by taking in alive organisms.

d)

organisms that get their energy/food by breaking down (decompose) other dead organisms and animal wastes.

5.

Which is true about decomposers?

a)

Decomposers do not exist

b)

Decomposers are only on Mars

c)

Decomposers are heterotrophs

d)

Decomposers are Autotrophs

6.

Define food web:

a)

Food web

b)

order in which matter and energy in the form of food is transferred from one organism to another.

c)

order in which matter in the form of energy is transferred from one organism to the soil.

d)

Food chain

7.

Define trophic levels:

a)

feeding position in a food web.

b)

organism that eats other organisms.

c)

Organism that makes its own food

d)

A single food chain

8.

What is biomass?

a)

the total mass of organisms in a given area or volume.

b)

the total area of organisms in a given mass.

c)

The only organism in an environment

d)

Mass of the world

9.

Which image is a biomass pyramid?

a)
b)
c)
d)
10.

Which image is a energy pyramid?

a)
b)
c)
d)