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WorksheetsRelationships Between Organisms
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
Behaviors or physical characteristics that make an individual better suited to their environment.
a)
natural selection
b)
adaptations
c)
niche
d)
traits
2.
The role of an organism in its habitat (how it makes its living) is called:
a)
niche
b)
adaptation
c)
job
d)
trait
3.
Which of these is not a type of interaction among organisms?
a)
Competition
b)
Predation
c)
Symbiosis
d)
Sharing
4.
When two species have the same niche, or are going for the same resource, they will:
a)
compete
b)
both die
c)
eat each other
d)
ignore each other
5.
One animal killing another for food is called:
a)
parasitism
b)
predation
c)
commensalism
d)
mutualism
6.
Which is not a type of symbiotic relationship?
a)
mutualism
b)
commensalism
c)
predation
d)
parasitism
7.
A close relationship between two species that benefits at least one of the species.
a)
symbiosis
b)
predation
c)
competition
d)
niche
8.
Relationship where both species benefit
a)
Commensalism
b)
Mutualism
c)
parasitism
d)
predation
9.
A relationship where one species is helped and one species is neutral (not hurt, but not helped).
a)
commensalism
b)
mutualism
c)
predation
d)
parasitism
10.
Relationship where one organism lives on or inside another organism and harms it.
a)
mutualism
b)
predation
c)
commensalism
d)
parasitism
11.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
12.
A frog eats a fly. The frog and fly are demonstrating ________.
a)
mutualism
b)
competition
c)
predator/prey
d)
parasitism
13.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
14.
Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. What kind of relationship is this?
a)
Mutualism
b)
Parasitism
c)
Commensalism
15.
A relationship in which two species live closely together.
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
16.
What best describes the relationship between bees and flowering plants.
a)
mutualism
b)
parasitism
c)
neutralism
d)
commensalism
17.
What type of symbiosis is this?
*Hermit crabs find shells left by snails that have died and move in.
* Snails die and leave behind their shells.
*Hermit crabs find shells left by snails that have died and move in.
* Snails die and leave behind their shells.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
18.
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)
Mutualism
b)
Parasitism
c)
Commensalism
d)
Predator/Prey
19.
A trait, body part or behavior that helps a living thing survive in its environment
a)
camoflage
b)
adaptation
c)
extiction
d)
instinct
20.
A clown fish uses the sea anemone for protection, while stirring up phytoplankton for the sea anemone. This is an example of what kind of relationship?
a)
mutualism
b)
parasitism
c)
commensalism
d)
predator/prey
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