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Unit 8 Ecosystems

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.
This is the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
a)
Physics
b)
Ecology
c)
Chemistry
d)
Psychology
2.
It is a biological community of interacting organisms and their physical environment.
a)
Ecosystem
b)
Biotic System
c)
Abiotic System
d)
None of the choices
3.
What is the term used to describe all living things in an ecosystem?
a)
Biotic Factors
b)
Abiotic Factors
c)
Environmental Factors
d)
Population
4.
What is the term used to describe all non-living things in an ecosystem?
a)
Biotic Factors
b)
Abiotic Factors
c)
Environmental Factors
d)
Population
5.
These are organisms that creates their own food such as plants and trees.
a)
Population
b)
Community
c)
Producers
d)
Consumers
6.
When a plant is eaten by a grasshopper, the grasshopper is called
a)
Producer
b)
Primary consumer
c)
Secondary consumer
d)
Tertiary consumer
7.
When a plant is eaten by a caterpillar and the caterpillar is eaten by a frog, the frog belongs to
a)
Producer
b)
Primary consumer
c)
Secondary consumer
d)
Tertiary consumer
8.
When a plant is eaten by a caterpillar and the caterpillar is eaten by a frog, and the frog is eaten by a snake, the snake belongs to
a)
Producer
b)
Primary consumer
c)
Secondary consumer
d)
Tertiary consumer
9.
When the animal dies, what do you call those organisms that break them down?
a)
Producers
b)
Decomposers
c)
Consumers
d)
None of the choices
10.
What do you call those organisms that feed on dead plants and animals? An example of these are mushrooms
a)
Bacteria
b)
Grass
c)
Virus
d)
Fungi
11.
Which among the following can feed on deers?
a)
boar
b)
tiger
c)
horse
d)
squirrel
12.

What type of symbiosis? Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower.

a)

commensalism

b)

mutualism

c)

predation

d)

parasitism

13.

If a cleaner fish cleans another big fish of its parasites, what type of symbiotic relationship is this?

a)

death

b)

commensalism

c)

mutualism

d)

paraitism

14.

A relationship in which two species live closely together.

a)

resource

b)

succession

c)

symbiosis

d)

mutualism

15.

How many types of symbiosis are there?

a)

5

b)

6

c)

7

d)

3

16.

Birds eat insects off the skin of cows. If the relationship is a type of mutualism, then the organisms that will benefit are

a)

only the cattle

b)

both the birds and the cattle

c)

neither the birds or the cattle

d)

only the birds

17.

a system of food chains that shows the transfer of energy is termed

a)

food chain

b)

food web

c)

predator

d)

prey

18.

Which of the following is NOT a biotic factor?

a)

elephant

b)

competition

c)

air

d)

symbiosis

19.

Temperature, light, air, water, and soil are all _____ parts of the environment

a)

alive

b)

biotic

c)

living

d)

abiotic

20.

Which answer best describes a consumer in an ecosystem?

a)

A living organism that eats other living organisms

b)

A living organism that produces food for other living organisms

c)

Someone that buys something

d)

An abiotic factor

21.

An animal that hunts other animals for food is called a ______________.

a)

Villian

b)

Prey

c)

Predator

d)

Fred

22.

a relationship where one species benefits and the other species is unaffected

a)

parasitism

b)

commensalism

c)

mutualism

d)

competition

23.

What does a food web represent?

a)

All connections of energy flow throughout all organisms in a habitat.

b)

A single pathway or energy flow between organisms.

c)

The specific ways that mutualism is carried out.

d)

How carnivores get their food.

24.

What does a food chain represent?

a)

How all living organisms within a habitat are connected.

b)

How plants create their own food.

c)

All of the things that a particular animal eats.

d)

A single path of energy transfer within a habitat.

25.

The image provided is an example of a:

a)

Producer

b)

Carnivore

c)

Consumer

d)

Decomposer

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