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WorksheetsEcosystems Interrelationships
Total questions: 12
Worksheet time: 12mins
Name
Class
Date
1.
What is mutualism?
a)
One organism benefits greatly and the other is not harmed
b)
One organism benefits while the other is harmed
c)
Close relationship where both organisms benefit
2.
A limited supply of food and shelter in the same habitat will lead to -
a)
mutualism
b)
parasitism
c)
competition
d)
environmental changes
3.
What is the organism that is harmed in a parasitic relationship?
a)
parasite
b)
host
c)
consumer
d)
producer
4.
What is the type of symbiotic relationship that helps one organism, but does not harm or help the other?
a)
parasitism
b)
mutualism
c)
commensalism
d)
symbiosis
5.
Fleas and ticks are examples of what?
a)
predators
b)
prey
c)
hosts
d)
parasites
6.
What is a predator?
a)
Neither
b)
An organism that is consumed
c)
An organism that does the consuming
7.
What is prey?
a)
An organism that is consumed
b)
An organism that consumes
c)
neither
8.
Plants need light, water, and carbon dioxide for photosynthesis. This is an example of an organism interacting with -
a)
biotic factors
b)
food webs
c)
abiotic factors
d)
dominant factors
9.
Which of these populations is most likely to decrease if the number of grasshoppers decreases?
a)
plants
b)
frog
c)
praying mantis
d)
owl
10.
An organism that creates its own food through the process of photosynthesis is called a -
a)
decomposer
b)
prey
c)
consumer
d)
producer
11.
A tapeworm lives in human intestines absorbing the nutrients that would normally be absorbed by the person. This eventually causes the person to experience health problems. This relationship is -
a)
predator/prey
b)
parasite/host
c)
herbivore/omnivore
d)
consumer/producer
12.
The food web shown is found in a marine ecosystem. The heron is considered a -
a)
producer
b)
primary consumer
c)
secondary consumer
d)
decomposer
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