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Unit 1 Organisms and the Environment Review

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

A living, or once-living, organism in an ecosystem is a/an ---

a)

abiotic factor.

b)

biotic factor.

2.

The Sun is the source of all energy within an ecosystem. Plants depend on light from the sun in order to perform the process of photosynthesis. Sunlight is an example of what type of factor?

a)

Biotic

b)

Abiotic

3.

Which two organisms are in a PRODUCER-CONSUMER relationship?

a)

Gray Wolf and Fruits

b)

Vole and Grass

c)

Elk and Coyote

d)

Elk and Gray Wolf

4.
Which two organisms in this food web are COMPETING for food with each other?
a)
Cougar and Deer
b)
Rabbit and Snake
c)
Insects and Grass
d)
Shrew and Mouse
5.
Maria and her classmates are observing animals at the pond. They notice that wood storks and ibisies both feed on fish. Which of these describes the relationship between these two birds.
a)
Parasitism
b)
Competition
c)
Predator and prey
d)
Producer and consumer
6.
The owl receives energy from which organisms?
a)
grasshopper and mouse
b)
mouse and rabbit
c)
rabbit and butterfly
d)
butterfly and frog
7.
An animal that is hunted and eaten for food is a __________.
a)
predator
b)
prey
c)
population
8.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
9.
Where do producers get their energy? 
a)
soil
b)
decomposers
c)
sun
d)
garbage
10.
a)
Consumer
b)
Producer
11.

Which of the following are examples of short-term, human-induced environmental changes? Select two answer choices.

a)

mass extinction

b)

building roads

c)

deforestation

d)

ozone layer destruction

e)

pollution

12.
If there is more food than usual in an ecosystem, then the population will mostly likely...
a)
stay the same
b)
decrease
c)
increase
d)
reach carrying capacity
13.

In the food web above, what eats the rabbit?

a)

Fox

b)

Hawk

c)

Vole

d)

Grass

14.

Click the following benefits of an artificial reef?

a)

Switch with old reefs

b)

Provide a habitat for many organisms to live

c)

Create new ecosystems

15.

Which of the following activities has a negative impact on the ocean ecosystem?

a)

Overfishing

b)

Artificial reefs

c)

Surfing

16.

Producers provide which of the following to humans

a)

Hydrogen

b)

Nitrogen

c)

Oxygen

17.

Organisms adapt in order to

a)

survive and reproduce

b)

die

c)

immigrate