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Abiotic & Biotic Factors

Total questions: 35

Worksheet time: 19mins

Name
Class
Date
1.

An abiotic factor is

a)

Living

b)

Non-living

c)

Both

d)

Neither

2.

A biotic factor is

a)

Living

b)

Non-living

c)

Both

d)

Neither

3.

What type of factor is this?

a)

Abiotic

b)

Biotic

4.

All of the different populations that live in a specific area.

a)

Community

b)

Ecosystem

c)

Habitat

d)

Village

5.

What type of factor is this?

a)

Biotic

b)

Abiotic

6.

What type of factor is this?

a)

Abiotic

b)

Biotic

7.

What type of factor is this?

a)

Abiotic

b)

Biotic

8.

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

a)

Mutualism

b)

Competition

c)

Commensalism

d)

Parasitism

9.

A relationship between two organisms in which one organism benefits and the other is unharmed

a)

Mutualism

b)

Competition

c)

Commensalism

d)

Parasitism

10.

All the members of one type of species in a specific area.

a)

Habitat

b)

Population

c)

Community

d)

Ecosystem

11.

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

a)

Mutualism

b)

Competition

c)

Commensalism

d)

Parasitism

12.

Which abiotic factor would be the main reason a polar bear not live in the desert?

a)

Salt concentration

b)

pH

c)

Temperature 

d)

Light

13.

A relationship between two organisms in which both organisms benefit. 

a)

Mutualism

b)

Competition

c)

Commensalism

d)

Parasitism

14.

The place where an organism lives that provides it with shelter, food and water.

a)

Ecosystem

b)

Community

c)

Population

d)

Habitat

15.

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

a)

Mutualism

b)

Competition

c)

Commensalism

d)

Parasitism

16.

Which would be a biotic factor for salmon in a river?

a)

Water temperature

b)

Water pH

c)

Bacteria in water

d)

Water salt concentration

17.

What type of symbiosis is this?

Hermit crabs find shells left by snails that have died and move in. 

Snails die and leave behind their shells.

a)

Mutualism

b)

Competition

c)

Commensalism

d)

Parasitism

18.

All of the different populations that live in a specific area.

a)

Ecosystem

b)

Ecology

c)

Habitat

d)

Community

19.

Which symbols best describe parasitism?

a)

+, +

b)

+, 0

c)

+, -

d)

-, 0

e)

-, -

20.

Which symbols best describe commensalism?

a)

+, +

b)

+, 0

c)

+, -

d)

-, 0

e)

-, -

21.

Which symbols best describe competition?

a)

+, +

b)

+, 0

c)

+, -

d)

-, -

e)

-, 0

22.

Which symbols best describe predation?

a)

+, +

b)

+, 0

c)

+, -

d)

-, -

e)

-, 0

23.

Which symbols best describe mutualism?

a)

+, +

b)

+, 0

c)

+, -

d)

-, 0

e)

-, -

24.

An abiotic factor related to the climate of an area would be:

a)

Water currents

b)

pH

c)

Temperature

d)

Topography

25.

The classification of symbiosis relationships is

a)

Interspecific - 2 different species

b)

intraspecific - the same species

c)

Both

26.

The classification of competition relationships is

a)

Interspecific - 2 different species

b)

intraspecific - the same species

c)

Both

27.

Which of the following is an example of symbiosis?

a)

A mother bear taking care of her cub

b)

A married couple who agree to split their rent and share housework duties.

c)

One chimp cleaning and grooming the hair of another chimp.

d)

A worm living in a cow's intestine.

28.

An organism that is killed and eaten by another organism

a)

Predator

b)

Prey

c)

Competition

d)

Adaptation

29.

_________ _________ are abiotic and biotic factors that limit the growth of a population.

(a)  

30.

The (a)   capacity of an environment is limited by the availability of biotic and abiotic resources.

31.

(a)   is the struggle among organisms for resources such as food, water, and space.

32.

The maximum number of organisms an ecosystem can support is called the -

a)

biotic factor

b)

limiting factor.

c)

carrying capacity.

d)

abiotic factor

33.

An organism that gets energy from breaking down dead organisms, non-living material or waste is a(an) (a)   .

34.

What do you call it when one species benefits AND the other species benefits?

(a)  

35.

What do you call it when one species benefits while the other species is harmed?

(a)