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Worksheets

Energy Flow in Ecosystems

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

In an ecosystem, snakes feed on frogs, which feed on mosquitoes. Use of a bug spray has decreased the number of mosquitoes. What will probably happen to the number of frogs and snakes?

a)

Frogs will increase, snakes will increase

b)

Frogs will increase, snakes will decrease

c)

Frogs will decrease, snakes will increase

d)

Frogs will decrease, snakes will decrease

2.

Which of these shows a possible food chain for an ecosystem?

a)

shark--> fish --> plankton -->sun

b)

sun --> plankton --> fish --> shark

c)

plankton --> sun --> fish --> shark

d)

plankton --> fish --> shark --> sun

3.

If the snake population decreased, which group would increase in number?

a)

Producers

b)

Primary consumers

c)

Secondary consumers

d)

Tertiary consumers

e)

Decomposers

4.

This biome is cold, has animals with thick fur, and permafrost prevents deep rooted plants

a)

Tundra

b)

Taiga

c)

Rain forest

d)

Grassland

5.

This is the largest biome, with lots of rainfall and snow

a)

Tundra

b)

Taiga

c)

Rain forest

d)

Grassland

6.

This biome has open spaces with grass, but very few trees

a)

Tundra

b)

Taiga

c)

Rain forest

d)

Grassland

7.

This biome has dense foliage and the most biodiversity

a)

Tundra

b)

Taiga

c)

Rain forest

d)

Grassland

8.

This is an example of a(n)

a)

omnivore

b)

carnivore

c)

herbivore

d)

decomposer

9.

A raccoon eats plants and animals. It is an example of a(n)

a)

omnivore

b)

carnivore

c)

herbivore

d)

decomposer

10.

What do producers need, other than sun, for photosynthesis?

a)

Water and CO2

b)

Glucose and O2

c)

Love and happiness

d)

Carbohydrates and water