Name:______________________________________ Date:_________________ Period:_____

Activity: Which Type of Symbiosis? Answer Key

Parasitism (-/+) Mutualism (+/+) Commensalism (+/o)

One organism is hurt and one organism is helped

Both organism benefit One organism benefits and the other is not affected.

Symbiosis comes from the Greek word meaning “life together.”

Article Section:Ticked Off?

Which Symbiosis?(Circle one)

How do you know?Explain what each organism gets from relationship.

Both animals benefit (+/+)

Parasitism

Mutualism

Commensalism

Rhino- gets a cleaning as the oxpecker removes pests like flies, leeches, and ticks from its back.

-----------------------------------------------------Oxpecker - gets to eat the rhino’s blood from the tick.

Article Section:Getting a Free Ride

Which Symbiosis?(Circle one)

How do you know?Explain what each organism gets from relationship.

Notes_Sci 7

Name:______________________________________ Date:_________________ Period:_____

Both animals benefit (+/+)

Parasitism

Mutualism

Commensalism

Remora - gets a free ride, protection from predators, and bits of food scraps that fall out of the shark’s mouth.---------------------------------------------------Shark - gets a good cleaning when the remora eats parasites, barnacles and leeches of the shark’s skin.

Article Section:Sweet as Honeydew

Which Symbiosis?(Circle one)

How do you know?Explain what each organism gets from relationship.

Both animals benefit (+/+)

Parasitism

Mutualism

Commensalism

Ants - get a nutritious drink of honeydew from the caterpillar’s body.

-----------------------------------------------------Caterpillar - gets lots of food by eating the baby ants.

Article Section:Sucker

Which Symbiosis?(Circle one)

How do you know?Explain what each organism gets from relationship.

One is hurt; one is helped (-/+)

Parasitism

Mutualism

Commensalism

Dog - is harmed as the flea sucks nutrients, blood and fluid from its body.

-----------------------------------------------------Flea - gets a good meal

Article Section:Thanks for Nothing

Which Symbiosis?(Circle one)

How do you know?Explain what each organism gets from relationship.

One helped/ one unaffected (+/o)

Parasitism

Mutualism

Commensalism

Orchid – gets a sunlit place to live

----------------------------------------------------Tree - gets nothing; isn’t affected

Article Section: Which Symbiosis? How do you know?

Notes_Sci 7

Name:______________________________________ Date:_________________ Period:_____

Clowning Around (Circle one) Explain what each organism gets from relationship.

Both animals benefit (+/+)

Parasitism

Mutualism

Commensalism

Clownfish - gets protection and a place to live (shelter).

-----------------------------------------------------Sea anemone- gets to eat fish that the clownfish lures nearby.

Notes_Sci 7