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WorksheetsSymbiotic Relationships
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Ostriches and gazelles eat together. They both watch for predators and danger. Since they see things differently, they each can identify threats the other animal may not see. Both species are benefited.
a)
mutualism
b)
commensalism
c)
predation
d)
parasitism
2.
Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers and the eggs hatch. The larvae eat some of the seeds, and spread them around. Both species are benefited.
a)
mutualism
b)
commensalism
c)
parasitism
d)
competition
3.
Mistletoe takes water and nutrients from the oak tree. This is good for the mistletoe but bad for the tree.
a)
mutualism
b)
commensalism
c)
parasitism
d)
competition
4.
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.
a)
mutualism
b)
parasitsm
c)
commensalism
d)
competition
5.
A flea feeds on a mouse’s blood. This is good for the flea but bad for the mouse.
a)
mutualism
b)
commensalism
c)
parasitism
d)
competition
6.
Hermit crabs live in shells that snails don't use anymore. The hermit crab gets a nice free home. This neither harms nor helps the snails.
a)
mutualism
b)
commensalism
c)
parasitsm
d)
predation
7.
Birds build nests out of dead twigs and leaves. They build their nests in living trees. This doesn't hurt the tree.
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
8.
In this food web, the grasshopper and the mouse have this relationship:
a)
mutualism
b)
commensalism
c)
competition
d)
predation
9.
in this food web, the lizard and the hawk have this relationship
a)
mutualism
b)
commensalism
c)
predation
d)
parasitsm
10.
In this food web, the snake and the mouse have this relationship
a)
mutualism
b)
commensalism
c)
predation
d)
parasitsm
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