Free Printable Symbiotic Relationships

Worksheets

Symbiotic Relationships

Total questions: 20

Worksheet time: 2hrs 36mins

Name

Class

Date

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.

mutualism

commensalism

competition

predation

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

commensalism

mutualism

parasitism

predation

What type of symbiosis? Skunks often live in burrows that have been dug and abandoned by woodchucks.

commensalism

mutualism

parasitism

predation

Red-billed oxpeckers are birds that often feed on parasites that infest impala. This is an example of _______.

commensalism

mutualism

parasitism

predation

When a mosquito bites you, you are the __________ and the mosquito is the ____________.

host, endoparasite

endoparasite, host

host, ectoparasite

ectoparasite, host

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

Mutualism

Ectoparasitism

Commensalism

Endoparasitism

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

commensalism

mutualism

parasitism

predation

A tick and a dog have this type of relationship.

mutualism

commensalism

predation

parasitism

Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales.

parasitism

commensalism

mutualism

10.

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed.

parasitism

commensalism

mutualism

11.

Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Because their visual abilities are different, they can identify threats that the other animal would not see as readily.

parasitism

commensalism

mutualism

12.

Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first. Next the honey guide birds eat. Both species benefit.

parasitism

commensalism

mutualism

13.

Oxpeckers feed on the ticks found on a rhinoceros. The oxpeckers get a meal and the rhinoceros is helped by the removal of the ticks.

parasitism

commensalism

mutualism

14.

As bison walk through grass, insects become active and are seen and eaten by cowbirds. The relationship neither harms nor benefits the bison.

parasitism

commensalism

mutualism

15.

In a parasitic relationship, one organism is ___________ and one organism is benefiting.

helped

harmed

not effected

happy

16.

A tapeworm and a cat have this type of relationship.

mutualism

endoparasitism

commensalism

ectoparasitism

17.

A wrasse fish feeds on the parasites found on the black sea bass's body. Both species benefit.

Mutualism

Parasitism

Commensalism

18.

A mite lives in the base of the eyelashes of people who use mascara. It feeds on the mascara; it does not seem to harm people. What type of symbiotic relationship is this?

mutualism

commensalism

parasitism

predation

19.

Bacteria that live on the surface of our teeth require sugar from our food to survive. A by-product of their metabolism (body processes) decays the enamel of teeth. What type of symbiotic relationship is this?

mutualism

commensalism

endoparasitism

ectoparasitism

20.

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish gets protection and shelter from the anemone.

This is an example of which type of symbiosis?

Commensalism

Mutualism

Ectoparasitism

Endoparasitism

100 %

Symbiotic Relationships

Total questions: 20

Worksheet time: 2hrs 36mins

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