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Life Science Test Review

Total questions: 30

Worksheet time: 30mins

Name
Class
Date
1.
According to this food chain, which of the following is a primary consumer?
a)
Crabgrass
b)
Field Cricket
c)
Black Racer
d)
Bald Eagle
2.
According to this food chain, which of the following is a tertiary consumer?
a)
Crabgrass
b)
Field Cricket
c)
Black Racer
d)
Bald Eagle
3.
According to this food web, which of the following organisms is an omnivore?
a)
Barren-ground Caribou
b)
Snowy Owl
c)
Short-tailed Weasel
d)
Arctic Fox
4.
Why are decomposers important to an ecosystem?
a)
They are the base of the energy pyramid.
b)
They keep primary consumers from growing too large.
c)
They add nutrients to the soil
d)
They keep secondary consumers from growing too large.
5.
What are the three levels of consumers?
a)
Consumers, producers, decomposers
b)
Primary, secondary, tertiary
c)
Plant, fish animal
d)
Scavangers, Producers, Consumers
6.
In this food web, at which point is energy transferred from a primary consumer to a secondary consumer?
a)
Common Shrew -> Long-tailed Weasel
b)
Long-tailed Weasel -> Great Horned Owl
c)
Long-tailed Weasel -> Common Shrew
d)
Slender Wheatgrass -> Common Shrew
7.

Organize these options into the right categories

Categorize the following

Trees

Raccoons

Apples

Water

Oxygen

Rocks

Biotic
Abiotic
8.

Only ​ (a)   are able to go through the process of photosynthesis.

Choose from the below words
producers
consumers
herbivores
humans
animals
9.

Select an Apex Predator from this food web.

A
B
C
D
E
F
G
H
10.

Match the following

a)

Apex Predator

1.

The top consumer in an ecosystem

b)

Primary Consumer

2.

Eats a producer in a food chain

c)

Food Chain

3.

Shows a single path of energy

d)

Food Web

4.

Shows multiple paths of energy

e)

Decomposer

5.

Break down dead organisms into nutrients

11.

All energy in most ecosystems originates from the ​ (a)   and is passed to producers. In this food chain the ​ (b)   is the producer, the ​ (c)   is the primary consumer, the ​ (d)   is the secondary consumer, and the ​ (e)   is the tertiary consumer.​

Choose from the below words
dandelion
rabbit
fox
mountain lion
Sun
12.

Producers need ​ (a)   and release ​ (b)   , but humans need ​ (c)   and release ​ (d)   .

Choose from the below words
carbon dioxide
oxygen
13.

How many predators does the mouse have?

a)
1
b)
2
c)
3
d)
4
14.

True or False?

All living things require energy.

a)

True

b)

False

15.

A bee and a flower work together to benefit each other. This is an example of _________________. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar. 

a)

commensalism

b)

parasitism 

c)

mutualism

16.
Which of he following interactions demonstrates a PARASITIC relationship?
a)

A mosquito sucking the blood of an animal

b)

Penguins huddling together to stay warm

c)
Many fish swimming together to protect each other from predators.
d)

Two hyenas working together to take down a larger animal

17.

If there was an increase in the rabbit population, what would be the short-term affects on the snake population?

a)

Snake population will increase

b)

Snake population will stay the same

c)

Snake population will decrease

d)

Snakes would go extinct

18.

If there was an increase in the rabbit population, what would be the short-term affects on the producer population?

a)

Producer population will increase

b)

Producer population will stay the same

c)

Producer population will decrease

d)

Producer would double in size

19.

Label the energy pyramid

a)producer
b)tertiary consumer
c)secondary consumer
d)primary consumer
1
2
3
4
1)
2)
3)
4)
20.

A plant or animal that does harm in its non-native environment.

a)

apex predator

b)

prey

c)
invasive species
d)

producer

21.

Order these from the smallest group to the largest group.

(1 = Smallest and 4 = Largest

a)

Organism

b)

Population

c)

Community

d)

Ecosystem

1)
2)
3)
4)
22.

Which of the following represents a population?

a)

b)

c)

d)

23.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
24.
Question Image

Match the following terms with the correct definition

a)

Predator

1.

Hunts for their food

b)

Prey

2.

Is the one being hunted

c)

Herbivore

3.

Only eats plants

d)

Carnivore

4.

Only eats other animals

e)

Omnivore

5.

Eats plants and animals

25.

A cow in a field disturbs insects that are hiding in the grass. When the insects hop or fly away the cattle regret eats them. Due to this relationship the egret obtains food easier, but the cow is neither helped or harmed. What type of symbiotic relationship is this?

a)
Commensalism
b)
Predation
c)
Mutualism
d)
Parasitism
26.
Why are invasive species dangerous?
a)
They can take away food from native species.
b)
They can fertilize the soil for native plants and let them grow taller.
c)
They can change a savanna biome to a taiga.
d)
They are too cooperative with native species.
27.

Where can producers be found on the energy pyramid?

A
B
C
D
28.

What does every food chain start with?

a)

producers

b)

heterotrophs

c)

consumer

d)

decomposers

29.

All energy in most ecosystems originally comes from ​ (a)   .

Choose from the below words
the Sun
primary consumers
apex predators
decomposers
30.

Sort the ingredients and end results of photosynthesis.

Categorize the following

Carbon Dioxide

Sunlight

Water

Glucose

Oxygen

Ingredients
End Results

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