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Ecosystems

Total questions: 25

Worksheet time: 19mins

Name
Class
Date
1.

One living thing. Ex. One frog, one tree, one rabbit

a)

Population

b)

Organism

c)

Community

d)

Ecosystem

2.

Many organisms of the same species living in the same area.

a)

Ecosystem

b)

Community

c)

Population

d)

Biome

3.

All of the living and non-living parts of the environment in the same area.

a)

Population

b)

Community

c)

Organism

d)

Ecosystem

4.

Many different types of populations living in the same area. All the living things in an area.

a)

Community

b)

Ecosytem

c)

Population

d)

Organism

5.

Click on all the abiotic factors

a)

Rabbit

b)

soil

c)

water

d)

sunlight

6.

Click on all the biotic factors

a)

rabbit

b)

tree

c)

soil

d)

water

7.

Producers are important because they

a)

create shade and shelter for humans

b)

they use up oxygen in the atmosphere

c)

use energy from the sun to make their own food and are the base of energy pyramids

d)

create homes for birds and squirrels

8.

What is the role/job of decomposers?

a)

They break down dead organisms and return their nutrients back to the ecosystem.

b)

Release oxygen into the atmosphere

c)

Help organize the community

d)

Create energy from the sun

9.

Consumers are

a)

organisms that help break down dead material

b)

organisms that create energy from the sun

c)

organisms that live in the ocean

d)

Organisms that get their energy from eating other organisms.

10.

In the food chain Carrots--->Rabbit--->Fox. The fox is a

a)

Producer

b)

Primary consumer

c)

Secondary consumer

d)

Decomposer

11.

In the food web list all the producers.

a)

Fox and Owl

b)

Bird and mouse

c)

Grasshopper and rabbit

d)

Carrots, grasses, and grains

12.

Which level in the energy pyramid has the most energy?

a)

Producers (buffalo grass)

b)

Vulture (Tertiary consumer)

c)

Coyote (Secondary consumer)

d)

Prairie Dog (Primary Consumer)

13.

Which is an example of competition

a)

A seagull eating a fish

b)

A lion eating a water buffalo

c)

Two hermit crabs fighting over a shell

d)

A chicken running away from a fox

14.
The place where an organism lives is its __________.
a)
habitat
b)
ecosystem
c)
organism
d)
population
15.
All of the living AND non-living things in an area that interact with each other are called a/an __________.
a)
community
b)
habitat
c)
population
d)
ecosystem
16.
ALL energy flow for an ecosystem begins with ...
a)
plants
b)
the moon
c)
the sun
d)
algae
17.
A relationship where both organisms benefit is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
18.
A relationship where one organism benefits and one organism is harmed is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
19.
A relationship where one organism benefits and one organism is unaffected is called __________.
a)
mutualism
b)
commensalism
c)
parasitism
20.
Organisms that hunt other organisms for food are called __________.
a)
predators
b)
prey
c)
producers
d)
heterotrophs
21.
A bird hitches a free, safe ride on the back of a grey elephant. The elephant doesn't seem to mind and barely notices the bird. Which type of relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
22.
A food web is composed of many...
a)
food webs
b)
food chains
c)
fast-food chains
d)
bike chains
23.

The arrows in a food chain represent

a)

The flow of electrons

b)

How water moves through a habitat

c)

The flow of energy from one organism to another

d)

How sunlight moves through a system

24.

As you move upward, from level to level, in an energy pyramid, energy _____.

a)

Increases

b)

Decreases

c)

Stays the same

d)

Increases at first, then decreases

25.

What are the Abiotic factors in this image?

a)

water, sunlight, dirt, air

b)

birds and plants

c)

birds, water, dirt

d)

plants, water