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Ecosystems 3º ESO
Test Description: Biology
Instructions: Answer all questions to get your test result.
1) Talking about a salt marsh, the meiofauna
A
are very small animals that live between the sand grains
B
are represented by crabs and lobsters
C
are the algae
D
include fish
2) Which of the following does not contribute to the species diversity of the tropics?
A
spatial homogeneity
B
predation
C
high productivity
D
predictability
3) The major reservoir for phosphorus is
A
the atmosphere
B
aquifers
C
soil and rocks
D
the sun
4) The accumulation of herbivore biomass in an ecosystem is an example of
A
net primary productivity
B
transpiration
C
biogeochemical cycles
D
secondary productivity
5) Which of the following is not a problem with ground water?
A
increasing use rate
B
government ownership
C
slow movement
D
pollution
6) Which is a more accurate way of dating rocks, absolute or relative dating?
A
none
B
absolute dating
C
relative dating
D
they are equally accurate
7) What is happening to the amount of carbon dioxide in the atmosphere?
A
it is increasing
B
it is fluctuating wildly
C
it is holding steady
D
it is decreasing
8) Which of the following is a secondary consumer?
A
a carnivore
B
a plant
C
a herbivore
D
none
9) On average, for a crop plant to produce one kilogram of food it requires how many kilograms of water?
A
1000
B
1
C
100
D
10
10) Which of the following contains a lot of carbon?
A
fossil fuels
B
all
C
peat
D
the ocean
*select an answer for all questions
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