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Interactions between living things

Total questions: 27

Worksheet time: 22mins

Name
Class
Date
1.
The role of an organism in its habitat (how it makes its living) is called:
a)
niche
b)
adaptation
c)
job
d)
trait
2.
A close relationship between two species that benefits at least one of the species.
a)
symbiosis
b)
predation
c)
competition
d)
niche
3.
Relationship where both species benefit
a)
Commensalism
b)
Mutualism
c)
parasitism
d)
predation
4.

One type of symbiosis - one species is helped and one species is neutral (not hurt, but not helped).

a)

commensalism

b)

mutualism

c)

predation

d)

parasitism

5.

One type of symbiosis - one organism lives on or inside another organism and harms it.

a)

mutualism

b)

predation

c)

commensalism

d)

parasitism

6.

A feeding relationship where one organism hunts and kills another organism.

a)

Commensalism

b)

Decomposistion

c)

Mutualism

d)

Predator-Prey

7.
An animal that hunts and consumes other organisms is known as a:
a)
Prey
b)
Decomposer
c)
Predator
d)
Commensalist
8.
The organism that is hunted and eaten in a particular feeding relationship is known as:
a)
Predator
b)
Decomposer
c)
Prey
d)
Autotroph
9.
Lion and Zebra - The lion hunts and kills the zebra for its food. This is an example of? 
a)
predator-prey
b)
mutualism
c)
commensalism
d)
parasitism 
10.

Wrasse feed on the parasites found on the black sea bass's body. This is an example of?

a)

predator-prey

b)

mutualism

c)

commensalism

d)

parasitism

11.

Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. This is an example of?

a)

predator-prey

b)

mutualism

c)

commensalism

d)

parasitism

12.

A lucky alligator spots a deer drinking water, attacks the deer, kills it, and eats it for food. This is an example of?

a)

predator-prey

b)

mutualism

c)

commensalism

d)

parasitism

13.
The wasp lays its eggs inside the hornworm. As they hatch, they eat their way out, killing the hornworm in the process. This is an example of? 
a)
predator-prey
b)
mutualism
c)
commensalism
d)
parasitism 
14.
The man-of-war fish lives amongst the Portuguese man of war jellyfish. The jellyfish provide the fish with protection from their predators. This is an example of? 
a)
predator-prey
b)
mutualism
c)
commensalism
d)
parasitism 
15.
Identify the form 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)
parasitism
d)
predation
16.
Cattle egrets 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
17.
A tapeworm feeds in the intestines of a cat, which harms the cat. The cat and the tapeworm have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
18.
What type of symbiosis?  
Skunks often live in burrows that have been dug and abandoned by woodchucks.  
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
19.
Red-billed oxpeckers are birds that often feed on parasites (like ticks) that feed off of impalas. This is an example of _______.
a)
commensalism
b)
mutualism
c)
neutralism
d)
competition
20.
When a mosquito bites you, you are the __________ and the mosquito is the  ____________.
a)
host, hostess
b)
parasite, host
c)
host, parasite
d)
prey, predator
21.
Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.
a)
Predation
b)
Parasitism
c)
Commensalism
d)
Mutualism
22.
If the population of a certain predator increases, there is often _______ its prey
a)
a decrease the population of
b)
an increase of the population of 
c)
great news for its prey of
d)
no  impact found on
23.

Any thing (food, water, sunlight, shelter, and space) or other organisms that regulates the size of a population of another organism is known as a __________.

a)

a limiting measure

b)

a limiting factor

c)

factorization

d)

materialization of precipitation

24.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
25.
When a population grows past the ecosystem's carrying capacity, what happens to the population?
a)
Continues to grow
b)
The population starts to die off to return to carrying capcity
c)
The population will go extinct due to lack of resources
d)
The population grows then finds a new carrying capacity
26.
In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?
a)
Squirrel Population
b)
Sunlight
c)
Grass available
27.

The number of individuals a habitat can sustain with the resources it has available

a)

Carrying capacity

b)

Limiting factors

c)

Resources

d)

Population

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