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Ecological relationships - 7th grade

Total questions: 25

Worksheet time: 15mins

Name
Class
Date
1.

What level of organization does this image show?

a)

community

b)

organism

c)

population

d)

biosphere

2.

Which organism is an example of a secondary consumer in this image?

a)

Mouse

b)

Snake

c)

Rabbit

d)

Fox

3.

What kind of consumer breaks down dead plants and animals?

a)

Decomposers

b)

Herbivores

c)

Carnivores

d)

Detritivores

4.

Which of the following is not an example of a limited resource?

a)

Water

b)

Mates

c)

Shelter

d)

Sunlight

5.
Cows and pronghorn both eat the same types of food in areas of Utah. What is the ecological relationship?
a)
Cooperation
b)
Parasitism
c)
Commensalism
d)
Competition
6.

Type of relationship: A wolf eating a rabbit.

a)

Predation

b)

Parasitism

c)

Competion

d)

Mutualism

7.

In a predator-prey relationship, when the population of the predator increases, the population of the prey will ____________.

a)

Increase

b)

Remain Stable

c)

Decrease

d)

Change unpredictably

8.
______________ occurs when more than one individual or population tries to use the same limited resource.
a)
Niche
b)
Predator-prey
c)
Availability
d)
Competition
9.
A group of particular organisms that belong to the same species that live in the same habitat is known as a:
a)
Population
b)
Ecosystem
c)
Community
d)
Biome
10.

Wasps often lay their eggs just inside the eggs of butterflies. The wasp larva (baby wasps) are able to get lots of nutrients and protection from the butterfly/caterpillar egg while its developing. After the caterpillar is born, the wasps continue lurking in the flesh of the caterpillar, soaking up more nutrients and drinking its blood. The wasp larva must keep its host alive, so it avoids damaging the vital organs.

What type of symbiosis is being described?

a)

Predation

b)

competition

c)

commensalism

d)

parasitism

11.
A feeder fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Decomposition
12.
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)
commensalism
c)
competition
d)
parasitism
13.
Which of the following symbiotic relationships is considered parasitic?
a)
Ticks feeding on a dog
b)
Bees transporting pollen from flowers
c)
Pilotfish swimming under sharks
d)

Birds eating the insects from the back of hippo

14.
Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.
a)
commensalism
b)
mutualism
c)

Protocooperation

d)
competition
15.

A clownfish uses a sea anenome as a safe place to live. This is an example of what type of relationship?

a)

Inquilinism

b)
Commensalism
c)
Mutualism
d)
Parasitism
16.

When bees land in a flower, they get some pollen on their hairy bodies, and when they land in the next flower, some of the pollen from the first one rubs off, pollinating the plant. This is known as a relationship in which both organisms involved benefit, called:

a)

Protocooperation

b)

Commensalism

c)

Mutualism

d)

Predation

17.

Another word for a plant that makes its own food using energy from sunlight…

a)

photosynthesis

b)

autotroph

c)

heterotroph

d)

carnivore

e)

herbivore

18.

Which term describes this statement: All the populations of all the different species that live together in a particular area

a)

Population

b)

Community

c)

Ecosystem

d)

Predator/Prey

19.

Interspecific relationships happen ( ) species.

a)

between different

b)

within the same

20.

What kind of relationship is shown in this image?

a)

parasitism

b)

commensalism

c)

mutualism

21.

Vines grow on a tree. The vines get light but the tree is not affected. What kind of relationship is this?

a)

Competition

b)

Mutualism

c)

Inquilinism

d)

Protocooperation

22.

The non-living part of the natural environment where an animal, plant or other organism lives…

a)

niche

b)

habitat

c)

community

d)

ecosystem

e)

biosphere

23.

What are the 5 levels of organization from smallest to largest?

a)

biome, organism, community, population, ecosystem

b)

population, biome, ecosystem, organism, community

c)

Organism, population, community, ecosystem, biome

d)

community, population, biome, ecosystem, organism

24.

An alligator is casually suntanning on the edge of a river. A local bird is picking food from between the alligators teeth and cleaning his teeth at the same time. This is an example of...

a)

mutualism

b)

commensalism

c)

protocooperation

25.

Termite colonies have workers, soldiers, and kings and queens with different jobs. What is the ecological relationship?

a)

Societies

b)
Parasitism
c)
Commensalism
d)
Competition