Unit 0: 7th Review 3: Interactions: Symbiosis and Food Webs

 Skunks often live in burrows that have been dug and abandoned by woodchucks. This is a form of  

(a)   because neither is harmed in this relationship and only one benefits

• commensalism
• mutualism
• parasitism
• predation

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants (which can make the plant weak, sickly, or even kill it). The aphid-plant relationship can be defined as

(a)   , where the aphid is the ​ (b)   and the plant is the ​ (c)  

• parasitism
• commensalism

• mutualism

• parasite
• host

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Match these terms

• one organism harms the other

• Mutualism 
• both organisms benefit

• Commensalism 
• one benefits; the other doesn't care

• Parasitsm 

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Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of (a)   .

• commensalism
• mutualism
• parasitism

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When a tick bites you, you are the ​ (a)   and it is the ​ (b)  

• host
• parasite

If the foxes were eliminated from this food web, the rabbit population would

(a)   because ​ (b)  

• increase
• decrease

• there are fewer predators to eat them
• the snakes would eat all of them
• the weasels make fun of them

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NGSS.MS-LS2-1

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According to this food web, the field mouse is a food source for which two animals?

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Which THREE animals are predators?

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Which THREE animals are 1st level consumers?

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Select the producer

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