WorksheetsSymbiotic Relationships
Total questions: 13
Worksheet time: 29mins
Name
Class
Date
1.
Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales.
a)
parasitism
b)
commensalism
c)
mutualism
2.
Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit.
a)
parasitism
b)
commensalism
c)
mutualism
3.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed.
a)
parasitism
b)
commensalism
c)
mutualism
4.
The stork uses it saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork.
a)
parasitism
b)
commensalism
c)
mutualism
5.
Two male Giraffes are fighting over the last green leaf of a tree that is dying.
a)
Competition
b)
Mutualsim
c)
Predation
d)
Commensalism
6.
In a parasitic relationship, one organism is ___________ and one organism is benefiting.
a)
helped
b)
harmed
c)
not effected
d)
happy
7.
In a mutual relationship, both organisms are ________________.
a)
hurt
b)
not effected
c)
harmed
d)
benefiting
8.
A tick is a parasite to a horse. Which statement best describes the relationship between the tick and the horse?
a)
a. The tick helps the horse get food.
b)
a. The tick harms the horse by feeding on its blood.
c)
a. The horse harms the tick by feeding on its blood.
d)
The tick does not affect the horse.
9.
Which is an example of commensalism?
a)
Two different kinds of organisms harming each other.
b)
Two different kinds of organisms are neither helping nor harming each other.
c)
One kind of organism is being helped, but the other one is not harmed or helped.
d)
One kind of organism is being helped, but the other is harmed.
10.
What is competition?
a)
Two organisms compete over limited resources
b)
One organism competes over limited resources
c)
Two organisms share limited resources
d)
A basketball game
11.
Competition between two organisms of different species is called?
a)
Interspecific
b)
Intraspecific
c)
Inter-species
d)
You and your cousins
12.
What relationship is this?
a)
Parasitism
b)
Intraspecific
c)
Predation
d)
Mutualism
13.
What type of competition does this picture show?
a)
Interspecific
b)
Commensialism
c)
Intraspecific
d)
Friendly
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