Symbiosis

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

• helped
• harmed
• not effected
• happy

In a mutual relationship, both organisms are ________________. 

• hurt
• not effected
• harmed
• benefiting 

Commensalism is where one organism is benefiting and the other organism is _____________________. 

• not effected
• helped
• harmed
• hurt

1.  A bee and a flower work together to benefit each other. This is an example of _________________. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar. 

• commensal relationship 
• parasitic relationship 
• mutual relationship 

A tick is a parasite to a horse. Which statement best describes the relationship between the tick and the horse? 

• a.  The tick helps the horse get food. 
• a.  The tick harms the horse by feeding on its blood. 
• a.  The horse harms the tick by feeding on its blood. 
• The tick does not affect the horse. 

A shark has barnacles that attach to his skin. The barnacles get a free ride from the shark. The shark is not helped by this relationship. This is an example of _________. 

• commensalism
• parasitism
• mutualism 
• competition 

Tapeworms live in the intestines of dogs and absorb nutrients from food the dog eats. Which best describes the outcome of this relationship?

• The dog and tapeworm both become ill. 
• The dog becomes ill, and the tapeworm benefits. 
• The tapeworm and dog helpe ach other survive. 
• The tapeworm helps the dog survive. 

BIOTIC refers to

• non-living things

• living things

• both living and non-living things

ABIOTIC refers to

• non-living things

• living things

• both living and non-living things

Which two faces represent mutualism? (select two)

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