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Worksheetsinteractions/comm changes PRETEST
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
An organism's particular role in a habitat, or when and how it survives, is called its __________
a)
carrying capacity
b)
ecosystem
c)
competition
d)
niche
2.
A hawk building its nest on the arm of a cactus is an example of ________
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
3.
The behaviors and physical characteristics of species that allow them to live successfully in their environment are called ___________
a)
habitats
b)
limiting factors
c)
biotic factors
d)
adaptations
4.
The struggle between organisms to survive in a habitat with limited resources is called ______________
a)
competition
b)
predation
c)
symbiosis
d)
parasitism
5.
The series of changes that occur after a disturbance in an existing ecosystem is called ______________
a)
pioneer succession
b)
secondary succession
c)
primary succession
d)
predator succession
6.
The first species to populate an area where primary succession takes place is called ______________________
a)
primary species
b)
secondary species
c)
pioneer species
d)
succession species
7.
An insect looks like a leaf, so it blends in with its surroundings and is hard for predators to see. The insect's characteristic is an example of _______________.
a)
adaptation
b)
stimulus
c)
mutualism
d)
commensalism
8.
Both species benefit in the type of symbiosis called ______________.
a)
parasitism
b)
mutualism
c)
commensalism
d)
predation
9.
In a parasitic relationship, the organism that the parasite lives on/in is called the ________.
a)
host
b)
niche
c)
consumer
d)
decomposer
10.
An increase in a predator population will most likely result in a decrease in the prey population.
a)
True
b)
False
11.
In which type of symbiotic relationship does one organism benefit and the other is neither helped nor harmed?
a)
mutualism
b)
parasitism
c)
commensalism
d)
predator
12.
An organism's habitat must possess all of the following except...
a)
food
b)
water
c)
predators
d)
shelter
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