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WorksheetsEnergy Flow in the Ecosystem
Total questions: 30
Worksheet time: 18mins
Name
Class
Date
1.
Which is a producer?
a)
deer
b)
tall grass
c)
lion
d)
worm
2.
A fox is an example of...
a)
Biotic Factor
b)
Abiotic Factor
3.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
4.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
5.
If a frog is the prey, what could be the predator?
a)
Grass
b)
Insect
c)
Snake
d)
Snail
6.
Water is an example of...
a)
Biotic Factor
b)
Abiotic Factor
7.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
8.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
9.
Primary Consumers are usually carnivores.
a)
True
b)
False
10.
True or False. In this Food Web Pyramid the consumers on each level only get about 10 percent of energy that the plants have stored.
a)
True
b)
False
11.
In Australia the farmers had a problem with beetles eating the sugar cane. So they introduced the cane toad to control that population. Instead of eating the beetles, they ate the source of food and other organisms. What would be a possible consequence of this?
a)
The other organisms attacks the toad population
b)
The ecosystem would be destroyed
c)
The cane toads would get too much food and die
d)
The food web was changed by this one organism
12.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
13.
A consumer is a __________.
a)
heterotroph
b)
autotroph
c)
omnitroph
d)
consumotroph
14.
Overlapping food chains in an ecosystem make up....
a)
food web
b)
food chain
c)
niche
d)
symbiosis
15.
A third-level consumer has to be which type?
a)
Carnivore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
16.
A producer is a____________.
a)
heterotroph
b)
autotroph
c)
omnitroph
d)
consumotroph
17.
An animal that eats other animals is a....
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
18.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
19.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
20.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
21.
In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
a)
10%
b)
20%
c)
80%
d)
90%
22.
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
23.
All food webs and food chains begin with _________________.
a)
primary consumer
b)
producers
c)
secondary consumers
d)
predators
24.
In the food web shown, the smaller bird would be considered....
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
25.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
26.
In the food web shown, the fox is a...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
27.
Is it possible for the hawk and the fox to be on the same trophic level (this means producer, primary consumer, secondary etc.)?
a)
Yes, the fox and hawk can be on the same trophic level
b)
No, the fox and hawk can not be on the same level
28.
Is the rabbit in the same food chain as the owl?
a)
No
b)
Yes
29.
How many carnivores are shown in this food web?
a)
6
b)
4
c)
5
d)
3
30.
Decomposers affect all levels of the food web.
a)
True
b)
False
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