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Symbiotic Relationships

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

A relationship between two organisms in which both organisms benefit.

a)

commensalism

b)

mutualism

c)

parasitism

2.

A relationship between two organisms where one benefits and the other is neither harmed nor helped.

a)

commensalism

b)

competition

c)

niche

3.

Barnacles create home sites by attaching themselves to whales.  This neither harms nor benefits the whales.  What type of symbiotic  relationship is this?

a)

mutualism

b)

commensalism

c)

parasitism

4.

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.  What type of symbiotic relationship is this?

a)

mutualism

b)

commensalism

c)

parasitism

5.

Cattle Egrets eat the insects stirred up by the cattle when they are grazing, is what symbiotic relationship?

Choose from the below words

Mutalism

Commensalism

Parasitism

Predation

6.

Bacteria in the intestines of cows gain nutrients and aid in the cow's'  digestion

a)

commensalism

b)

mutualism

c)

parasitism

d)

competition

7.

Remoras are small fish that swim close to or attach themselves to sharks.  Remoras eat small scraps left as the sharks feed and the sharks are unaffected. 

a)

Competition

b)

Predation

c)

Mutualism

d)

Commensalism

8.

A bison walks through the grass, insects fly up and are seen and eaten by egrets. This neither harms nor helps the bison, but it is easier for the egrets to get food. This is an example of (a)   .

Choose from the below words

mutualism

parasitism

commensalism

9.

The close relationship between two different species in an ecosystem

a)

Biosphere

b)

Ecology

c)

Symbiosis

d)

Environment

10.

A Mosquito and Leech sucking blood out of an arm are examples of what kind of Symbiotic relationship? (a)  

Choose from the below words

Mutualism

Commensalism

Parasitism

Predation

11.

Cattle Egrets eat the insects stirred up by the cattle when they are grazing, is what symbiotic relationship? (a)  

Choose from the below words

Mutalism

Commensalism

Parasitism

Predation

12.
Question Image

Match the following interactions with their types.

a)

mutualism

1.

Ostriches and gazelles both benefit from each other's presence.

b)

commensalism

2.

A bird lives in a tree without affecting it.

c)

parasitism

3.

A tapeworm lives in the intestines of a mammal, harming it.

13.

Match the following graphs with the appropriate symbiotic relationship.

a)

1.

Mutualism

b)

2.

Commensalism

c)

3.

Parasitism

d)

4.

Predator/ Prey

e)

5.

Ms. Canizarism

14.

A flea feeds on a mouses' blood to the harming of the mouse.  What type of symbiotic relationship is this?

a)

commensalism

b)

mutualism

c)

parasitism

15.

Hermit crabs live in shells made and then abandoned by snails.  This neither harms nor benefits the snails.  What type of symbiotic relationship is this?

a)

parasitism

b)

commensalism

c)

mutualism

16.

Mistletoe takes water and nutrients from the spruce tree.  The spruce tree eventually dies.  What type of symbiotic relationship is this?

a)

commensalism

b)

parasitism

c)

mutualism

17.

Cattle egrets foraging in fields among cattle. The egret gets easy access to food and the cattle don't care if they are there or not.

a)

mutualism

b)

commensalism

c)

competition

d)

parasitism

18.

Barnacles create home sites by attaching themselves to whales. Since the barnacle is a filter feeder, it also gets access to more water (and food) due to the relationship. The whale is unaffected.
This is an example of which type of symbiosis?

a)

Commensalism

b)

Mutualism

c)

Parasitism

d)

Competition

19.

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

a)

commensalism

b)

mutualism

c)

parasitism

d)

predation

20.

What type of symbiosis is this?
Snails die and leave behind their shells.Hermit crabs find shells left by snails that have died and move in. 

a)

commensalism

b)

mutualism

c)

parasitism

d)

predation

21.

A relationship between two organisms where one species benefits while the other is harmed.

a)

commensalism

b)

mutualism

c)

parasitism

22.

Which of the following is an example of mutualism?

a)

A bee pollinating a flower

b)

A tapeworm in a human intestine

c)

A barnacle on a whale

d)

A lion hunting a zebra

23.

In a symbiotic relationship, which type benefits both organisms involved?

a)

Parasitism

b)

Commensalism

c)

Mutualism

d)

Predation

24.

What type of symbiotic relationship is demonstrated by a clownfish and a sea anemone?

a)

Parasitism

b)

Mutualism

c)

Commensalism

d)

Competition

25.

Which of the following is NOT a type of symbiotic relationship?

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Predation