Free Printable Competition In Ecosystems

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Worksheets

Competition In Ecosystems

Total questions: 51

Worksheet time: 41mins

Name

Class

Date

1.

This is a biotic factor:

a)

grass

b)

rocks

c)

soil

2.

Rabbits and deer eat leaves, twigs, fruits and nuts, grass, corn, and alfalfa. Are the items listed in their diet biotic or abiotic?

a)

biotic

b)

abiotic

3.

What are some examples of resources over which plants compete?

a)

space, water, and animals

b)

water, light , and space

c)

sugar, temperature and carbon dioxide

4.

In a certain ecosystem, foxes and snakes prey on the same rabbits. What would INCREASE the competition between the foxes and snakes?

a)

increase in foxes and snakes

b)

A smaller habitat for the foxes, snakes, and rabbits

c)

A reduction (lfewer) rabbits in the ecosystem

d)

All of the above

5.

What is competition in an ecosystem?

a)

How all the living and nonliving things in an area interact.

b)

A single, self-contained living thing

c)

More than one individual or population that depends on the same limited resources.

6.

What is an ecosystem?

a)

Something in the environment that is needed for organisms to survive but is only available in fixed amounts

b)

A system that includes all the biotic and abiotic factors in an area and their interactions

c)

A system that includes all the biotic factors in an area and their interactions

7.

Grass would not survive in a backyard ecosystem in July if it did not have sunlight and water for three weeks in northwest Arkansas. Sunlight and water are:

a)

independent factors for grass

b)

dependent factors for grass

c)

biotic factors for prass

8.

Which factor is NOT abiotic?

a)

water

b)

seaweed

c)

sand

d)

sunlight

9.

Which factor is NOT biotic?

a)

a dead tree

b)

a flower

c)

a snake skin

d)

soil

10.

Is this a DEPENDENT or COMPETITIVE relationshp?

a)

Dependent

b)

Competitive

11.

Is this a DEPENDENT or COMPETITIVE relationshp?

a)

Dependent

b)

Competitive

12.

Is this a DEPENDENT or COMPETITIVE relationshp?

a)

Dependent

b)

Competitive

13.

Is this a DEPENDENT or COMPETITIVE relationshp?

a)

Dependent

b)

Competitive

14.

Is this a DEPENDENT or COMPETITIVE relationshp?

a)

Dependent

b)

Competitive

15.

Is this a DEPENDENT or COMPETITIVE relationshp?

a)

Dependent

b)

Competitive

16.

A plant or animal that comes into a new ecosystem and consumes limited resources are called _____________.

a)

Invasive Species

b)

Native Species

17.

In which type of interaction does one animal eat another for energy and nutrients?

a)

Competition

b)

Parasitism

c)

Predation

d)

Mutualism

18.

An animal that eats another animal is called...

a)

Prey

b)

Organism

c)

Predator

d)

Mammal

19.

The relationship in which both organisms benefit.

a)

Predation

b)

Mutualism

c)

Commensalism

d)

Parasitism

20.

This occurs when organisms in a community fight for the same limited resource.

a)

Commensalism

b)

Competition

c)

Mutualism

d)

Symbiosis

21.

Which of these is NOT a limited resource organisms compete for in a community?

a)

Wind

b)

Food/Water

c)

Mates

d)

Sunlight

22.

Algae growing on the stable shell of a spider crab and providing camouflage for the crab is an example of...

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Predation

23.

What limited resource are the plants in this picture most likely competing for?

a)

Shelter

b)

Mates

c)

Wind

d)

Sunlight

24.

Increased food supplies in an ecosystem decrease competition because the competing organisms would...

a)

reproduce more often.

b)

have enough food to eat.

c)

store large quantities of food.

d)

have more space in which to live.

25.

Vocabulary:

A group of interacting individuals of the same species located in the same area

a)

Ecosystem

b)

Population

c)

Organism

d)

Abiotic

26.

Vocabulary:

Ecosystem

a)

Not living or produced by living things

b)

Living or produced by living things

c)

A group of interacting individuals of the same species located in the same area

d)

How all of the living and nonliving things in an area interact

27.

This diagram shows the variety of organisms that live in different tide zones. Mussels are common organisms that compete for space in intertidal (middle) tide zones. If all of the mussels were removed from zone A, which organisms would likely compete for the space in Zone A?

a)

Periwinkle and Limpets

b)

Sea lettuce and Chiton

c)

Sea urchins and Hermit crabs

d)

Rock louse and Periwinkle

28.

What will happen if a factor that a species is dependent on decreases?

a)

The species will also decrease

b)

The species will increase

c)

nothing

29.

Organism X feeds mainly on small fish, amphibians, and reptiles. With which organism is organism X most likely to compete?

a)

Great blue heron

b)

Mallard

c)

Pied-billed grebe

d)

Great egret

30.

Ecosystems depend on organisms to ________ with each other to maintain stability.

a)

interact

b)

build

c)

eat

d)

grow

31.

Living things depend on many different _________ in order to survive.

a)

resources

b)

environments

c)

ecosystems

d)

interactions

32.

Environments include both _____ and _____ things.

a)

resources; factors

b)

air; water

c)

living; nonliving

d)

buildings; animals

33.

For populations to continue to survive, some organisms in the population must _________.

a)

grow

b)

reproduce

c)

eat

d)

die

34.

A limited resource in an ecosystem is

a)

something that is appreciated by organisms and is not infinite (unlimited) in the environment. If the resource runs out or is destroyed, the organisms will be okay.

b)

something that is unlimited and will last forever, organisms and populations may compete, but only for fame and glory.

c)

something that is needed by organisms and is not infinite (unlimited) in the environment. If the resource runs out or is destroyed, then the organisms that need it will likely die off.

d)

something that is not needed by organisms and is not infinite (unlimited) in the environment. If the resource runs out or is destroyed, then there will be no effect on the organisms.

35.

A self-contained living thing. Examples include bacteria, douglas fir tree, wolf, turkey, madrone, salmon.

a)

ecosystem

b)

organism

c)

cell

d)

abiotic

36.

Which two animals would compete for food resources?

a)

mountain lions

b)

grass

c)

coyotes

d)

rabbits

37.

If the grass in a field burned away, what would happen to the population of rabbits in the same field?

a)

increase

b)

decrease

38.

The following question can be studied through which cross cutting concept: "What will happen to the temperature of water if I add salt to the mixure?"

a)

Scale, proportion, and quantity

b)

Cause and Effect

39.

The way in which an object or living thing is built determines what it can do. What is this CCC?

a)

Systems and system models

b)

Energy and matter

c)

Structure and function

40.

Which one of these situations represents cause and effect?

a)

If I eat a lot of junk food, I will feel sick to my stomach.

b)

Running a mile is fun with my friends.

c)

When I play video games I want to play forever.

d)

Jumping up and down on a trampoline is good exercise.

41.

The class created a replica of the Earth and its different layers to study the properties, the behavior, and the way energy interacts with each level, on a smaller scale. Which CCCs can be used with this example? (There may be more than one answer...)

a)

Energy and Matter

b)

Scale Proportion and Quantity

c)

Systems and System Models

42.

As we monitor and track the phases of the moon over time we can see that it repeats its phases over a 27 day period. What CCC would we use to help us study this?

a)

Identifying Patterns

b)

Cause and Effect

c)

Structure and Function

d)

Energy and Matter

43.

What are the CCCs?

a)

Create Content Creatively

b)

Cross Cutting Concepts

c)

Critical Collaborative Communication

d)

Cross Curricular Content

44.

Repeating events or shapes help scientists to organize

a)

Cause and effect

b)

Systems and system models

c)

Patterns

d)

Energy and matter

e)

Structure and function

45.

True or False: A concept in science can contain many CCCs.

a)

True

b)

False

46.

Which Cross-Cutting Concept do you think this picture would provide the best example?

a)

Stability and Change

b)

Patterns

c)

Cause and Effect

d)

Energy and Matter

47.

Which Cross-Cutting Concept do you think this picture would provide the best example?

a)

Structure and Function

b)

Patterns

c)

Energy and Matter

d)

Cause and Effect

48.

Brandon and his dad cut a tree that fell in a storm into smaller sections. Then they split the wood to use for firewood. Firewood is an example of which type of factor.

a)

Biotic

b)

Abiotic

49.

CHECK OFF: Which of the following represents abiotic matter?

a)

Rocks

b)

Plants

c)

Water

d)

Air

e)

Dead organism

50.

Which are our classroom norms?

a)

Be Present

b)

Be Correct

c)

Be Kind and Empathetic

d)

Have Rizz

51.

Blurting out in class is not okay because...

a)

It distracts your teacher from teaching

b)

It is showing off

c)

It shows others that they don't know the answer

d)

It creates too much noise which upsets other learners

Reset

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