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Module 2- Principles Of Ecology Test Review
Test Description: Module 2 assessment review
Instructions: Answer all questions to get your test result.
1) Which is an abiotic factor?
A
a polar bear on an ice floe
B
fungi and moss on a rotting log
C
a forest of deciduous trees
D
an ocean current of cold water
2) Jason is watching a science fiction movie when he hears one of the characters mention the term biosphere. Jason has never heard the term before and decides to look it up in a dictionary. Which would be included in the definition of biosphere?
A
the living things that inhabit earth
B
all parts of Earth where life can survive
C
regions of the Earth where many organisms live
D
the inner core, continents, and oceans of the Earth
3) How can detritivores be beneficial to the environment?
A
provide food for autotrophs
B
facilitate photosynthesis in plants
C
allow predation to occur
D
rid waste and dead matter
4) Which is an example of mutualism?
A
crayfish and minnows resting under the same rock
B
two snake species with similar markings advertising their toxic venom
C
a fish protecting a shrimp, who builds a burrow for the pair to share
D
a peacock courting and mating with a peahen
5) Ecologists often use modeling, instead of field studies, because it __
A
helps them collect more samples
B
allows them to control all of the variables involved
C
is less expensive than working in the field
D
lets them study many organisms at once
6) Suppose two leaf-eating species of animals live in a habitat where there is a severe drought and many plants die as a result. Which term describes the kind of relationship the two species probably will have?
A
Abitoic
B
Symbiotic
C
Predator-Prey
D
Competitive
7) A biotic or abiotic factor that restricts the numbers of organisms in an ecosystem is called a ______
A
primary succession
B
limiting factor
C
tolerating factor
D
end point
8) What is released at each level of a pyramid of energy?
A
heat
B
animals
C
plants
D
decomposers
9) In the nitrogen cycle, nitrogen is continuously recycled. Which type of organisms break down nitrogen compounds in dead organisms and recycle them into the soil?
A
bacteria
B
herbivores
C
green plants
D
autotrophs
10) What process involves the capture and conversion of nitrogen into a form useable by plants?
A
nitrogen fixation
B
condensation
C
dinitritification
D
phosphate cycle
11) What is the biosphere?
A
biological community and all the nonliving factors that affect it
B
all the interacting populations that live in the same geographic location at the same time
C
the relatively thin layer of Earth and its atmosphere that supports life
D
physical area where an organism lives
12) What is commensalism?
A
both organisms benefit
B
one organism benefits and the other organism is unaffected
C
one organism benefits and one is harmed
13) What is a trophic level?
A
model that shows many interconnected food chains and pathways in which energy and matter flow through an ecosystem
B
each step in a food chain or food web
C
simplified model that shows a single path for energy flow through an ecosystem
14) What is parasitism?
A
one organism benefits and the other organism is unaffected
B
one organism benefits and one is harmed
C
symbiotic relationship in which both organisms benefit
15) The amount of oxygen in a fish tank is a ____________ that affects the amount of fish that can live in the tank.
A
limiting factor
B
primary succession
C
tolerating factor
D
end point
16) A large school of barracuda is an example of
A
organism
B
biological community
C
population
D
biome
17) A barracuda
A
biological community
B
population
C
biome
D
organism
18) All the populations of organisms that interact with each other in the same region
A
organism
B
biological community
C
biome
D
population
19) Coyotes eat mice and rabbits. This is an example of
A
predation
B
commensalism
C
parasitism
D
competition
20) Which of these is Biotic
A
soil
B
water
C
temperature
D
plants
*select an answer for all questions
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