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WorksheetsEnv Sci, Chapter 5, How Ecosystems Work, Post Assessment, Retake
Total questions: 30
Worksheet time: 20mins
Name
Class
Date
1.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
2.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
3.
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
4.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
5.
A consumer is a __________.
a)
heterotroph
b)
autotroph
c)
omnitroph
d)
consumotroph
6.
A producer is a____________.
a)
heterotroph
b)
autotroph
c)
omnitroph
d)
consumotroph
7.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
8.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
9.
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%
10.
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
11.
In the food web shown, the smaller bird would be considered....
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
12.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
13.
In the food web shown, the fox is a...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
14.
Is the rabbit in the same food chain as the owl?
a)
No
b)
Yes
15.
How many carnivores are shown in this food web?
a)
6
b)
4
c)
5
d)
3
16.
What is A?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
17.
What is B?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
18.
Which part of the water cycle is occuring when warm, moist air cools and begins forming clouds?
a)
condensation
b)
evaporation
c)
precipitation
d)
transpiration
19.
Which process impacts the water cycle by drawing water vapor from plant leaves?
a)
evaporation
b)
condensation
c)
precipitation
d)
transpiration
20.
How does carbon dioxide leave the atmosphere?
a)
Through transpiration
b)
Through photosynthesis
c)
Through factory emission
d)
Sunlight
21.
When carbon combines with oxygen, what forms?
a)
Nitrogen
b)
Argon
c)
Carbon dioxide
d)
Sodium hydrogen
22.
These gases, such as carbon dioxide, trap heat in the Earth's atmosphere causing global warming
a)
Global warming gases
b)
Hot House gases
c)
Green House gases
d)
Thermal pollution
23.
Which of the following is not a decomposer
a)
Vulture
b)
Fungus
c)
Worm
d)
Bacteria
24.
What 2 thing in the form of gases take action in the carbon cycle?
a)
Water and poison gas
b)
Carbon Dioxide and oxygen
c)
water and oxygen
25.
Animals obtain the nitrogen they need directly from the
a)
soil in their habitat
b)
air they breathe
c)
plants they eat
d)
bacteria living within them
26.
Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle? Nitrogen-fixing bacteria convert
a)
nitrates intro nitrogen gas
b)
ammonia into proteins
c)
nitrogen gas into ammonia
d)
proteins into nitrates
27.
Organisms use nitrogen to form
a)
carbohydrates and lipids
b)
proteins and lipids
c)
lipids and nucleic acids
d)
proteins and nucleic acids
28.
What are the two ways nitrogen gas is turned into a form plants and animals can use?
a)
lightning & bacteria
b)
bacteria & worms
c)
lightning & worms
d)
bacteria & fungi
29.
Where does the phosphorus cycle start?
a)
rocks and soil
b)
air
c)
water
30.
Phosphorus is different from the other cycles because it does not enter ....
a)
plants
b)
water
c)
the air
d)
animals
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