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Worksheets

Symbiotic Relationships

Total questions: 14

Worksheet time: 4hrs 30mins

Name
Class
Date
1.

In which type of symbiotic relationship does the predator eat it's prey?

a)

Commensalism

b)

Parasitism

c)

Mutualism

d)

Predation

2.
Which symbols best describe mutualism?
a)

both benefit

b)

one benefits, one is harmed

c)

one benefits, one is unaffected

d)

one is unaffected, one is harmed

3.

Which symbols best describe commensalism?

a)

both benefit

b)

one benefits, one is harmed

c)

one benefits, one is unaffected

d)

one is unaffected, one is harmed

4.

Which symbols best describe parasitism?

a)

both benefit

b)

one benefits, one is harmed

c)

one benefits, one is unaffected

d)

one is unaffected, one is harmed

5.
Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
6.
Yucca flowers are pollinated by yucca moths. The moths lay their eggs  in the flowers where  the larvae hatch and eat some of the developing seeds. Both species benefit.  
a)
Mutualism 
b)
Parasitism 
c)
Commensalism 
7.

Commensalism is a symbiotic relationship in which what occurs between the organisms?

a)

both organisms are harmed

b)

one benefits, the other is unaffected

c)

one benefits, the other is harmed

d)

one benefits by eating the other

8.

The parasitic roundworm anchors itself to the wall of the intestine and causes diseases to the organisms.

a)

competition

b)

mutualism

c)

commensalism

d)

parasitism

9.

A mouse is captured and eaten by an owl.

a)

predation

b)

competition

c)

mutualism

d)

parasitism

10.

The sea lamprey uses its oral disc to attach itself to a larger fish then bores a hole through the fish's flesh and sucks its blood.

a)

competition

b)

mutualism

c)

commensalism

d)

parasitism

11.

A snake catches and swallows a frog

a)

predation

b)

mutualism

c)

competition

d)

parasitism

12.

A shrimp digs a hole to burrow itself and a goby fish. In case of danger, the goby fish touches the shrimp with its tail to warn it.

a)

predation

b)

mutualism

c)

competition

d)

commensalism

13.
A boxer crab carries a pair of small anemones in its chelipeds, or claws. When approached by a predator, the crab waves the stinging tentacles of the anemones to deter the predator. The anemones benefit from the small particles of food dropped by the crab during feeding. 
a)
Commensalism
b)
Mutualism
c)
Parasitism
14.

Wrasse fish feed on the parasites found on the black sea bass's body. Both species benefit.

a)

commensalism

b)

parasitism

c)

mutualism