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etH - life Hunter 8.15.23

Total questions: 15

Worksheet time: 10mins

Name
Class
Date
1.

What is the original source of almost all the energy in most ecosystems?

a)

Carbohydrates

b)

Sunlight

c)

Water

d)

Carbon

2.

The phytoplankton at the beginning of the food chain in the image are …

a)

Consumers

b)

Decomposers

c)

Producers

d)

Heterotrophs

3.

Look at the diagram.

Which shows one way that energy flows to the hawk in this food web?

a)

Plants → Rabbit → Hawk

b)

Plants → Mouse → Lizard

c)

Hawk → Mouse → Plants

d)

Plants → Mouse → Rabbit

4.

Use the forest food web diagram to help with this question.

In this food web, there are different organisms that could be affected if the mouse population were to decline, or decrease.  

Which ONE of these statements is true?

a)

The Snake population will increase, whereas the rabbit population will decrease.

b)

Both the Wild cat population and the Rabbit population will decrease.

c)

Both the Rabbit population and the owl population will increase.

d)

None of these are true.

5.

Look at the diagram.

This food web shows how energy moves or is transferred from one organism to another.

Which organism is the apex, or top, predator?

a)

Grasshopper

b)

Lizard

c)

Hawk

d)

Plants

6.

Use the image to help.

In the Chesapeake Bay Waterbird Food Web image, which of these is an example of a Secondary Consumer?

a)

Tundra Swan

b)

Bivalves

c)

Osprey

d)

Phytoplankton

7.

In order to support all of the organisms in an ecosystem, which should have the greatest amount of biomass?

a)

secondary consumers

b)

producers

c)

primary consumers

d)

decomposers

8.

Decomposers get energy from...

a)

the sun

b)

eating plants

c)

eating animals

d)

dead things and waste

9.

What questions do you have about energy transfer?

4 lines
10.

Water at the top of a waterfall.

a)

Kinetic Energy

b)

Potential Energy

11.

Skiing down a mountain.

a)

Kinetic Energy

b)

Potential Energy

12.

a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products

a)

mathematical formula

b)

mathematical equation

c)

chemical formula

d)

chemical equation

13.

a substance that takes part in and undergoes change during a reaction.

a)

coefficient

b)

subscript

c)

reactant

d)

product

14.

a substance that forms in a chemical reaction

a)

coefficient

b)

subscript

c)

reactant

d)

product

15.
build up larger molecules from smaller ones while absorbing energy
a)
anabolic reactions
b)
catabolic reactions
c)
biochemistry
d)
biochemical reactions