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WorksheetsEcology Review #2
Total questions: 20
Worksheet time: 1hrs 9mins
Name
Class
Date
1.
All energy transformations in an ecosystem begin with
a)
a scavenger
b)
the sun
c)
a decomposer
d)
a herbivore
2.
a system of food chains that shows the transfer of energy is termed
a)
food web
b)
food chain
c)
prey
d)
predator
3.
an organism that can produce its own food through photosynthesis
a)
consumer
b)
heterotroph
c)
autotroph
d)
herbivore
4.
an example of producer consumer relationship would be
a)
lion eating a deer
b)
grasshopper getting energy from grass
c)
hawk getting energy from snakes
d)
earthworm breaking down dead material
5.
What is the best explanation for an energy pyramid?
a)
It shows the FLOW of energy from one organism to the next.
b)
It shows HOW much energy flows through a food web
c)
It shows the MEMBERS in a single organism
6.
The deer, grasshopper, and bird are all examples of which type of consumers on this food pyramid?
a)
decomposers
b)
omnivores
c)
carnivore
d)
herbivore
7.
An organism that gets energy from breaking down dead organisms, non-living material or waste
a)
producer
b)
consumer
c)
decomposer
8.
The direction of the flow of energy in a food web is represented by ___.
a)
Light bulbs
b)
Dotted Lines
c)
Arrows
d)
Bubbles
9.
Energy increases as you move up the food pyramid (from bottom to top).
a)
True
b)
False
10.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
11.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
12.
If these organisms were arranged in a food pyramid, which organism would have the least amount of total energy available?
a)
coyote
b)
insect
c)
lizard
d)
shrub
13.
The diagram represents a pyramid of energy in an ecosystem. Which level would most likely contain members of the plant kingdom?
a)
A
b)
B
c)
C
d)
D
14.
A food pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows a food pyramid?
a)
A
b)
B
c)
C
d)
D
15.
Living or organic matter
a)
Decomposer
b)
Autotroph
c)
Biomass
d)
Consumer
16.
In an energy pyramid, energy_______ as you move up the pyramid.
a)
Increases
b)
Decreases
c)
Stays the same
d)
Changes up and down
17.
If only 10% of an organism's energy is available for the next trophic level, what happens with the other 90% of the energy?
a)
It is destroyed after it is used up.
b)
It is used for life processes or lost as body heat.
c)
It remains for the next trophic level IF the predator consumes ALL of the organism.
d)
It is lost completely as body heat.
18.
What makes an energy pyramid different than a food web or chain?
a)
It shows energy flowing from the top of the chain and downward.
b)
The tropic levels are the opposite
c)
It shows the amount of energy in each trophic level
d)
It shows specific predator/prey relationships
19.
Why are producers found at the base of the pyramid?
a)
They create all of the energy and therefore have the most energy of all of the trophic levels
b)
There are more plants than animals.
c)
They begin the flow of energy in an ecosystem.
d)
All of these answers are correct.
20.
If the rabbits have 5,000 units, how many units will the hawk (top predator) have?
a)
5 units
b)
5,000 units
c)
50 units
d)
500 units
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