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CB9F Test

Enter the letter for the matching Answer
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1.
Which term describes organisms that get their food by eating other organisms?
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2.
Name one carbon compound found in living organisms.
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3.
Name two groups of organisms that carry out the biotic process that removes carbon from the atmosphere.
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4.
Which term means planting new trees in a large area where trees were cut down?
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5.
Give one advantage of using more biofuels.
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6.
Which cycle describes the relationship in population size of a secondary consumer and the animal species that it eats?
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7.
What is potable water?
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8.
Name one group of organisms that includes decomposers.
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9.
Which scientific term means all individuals of the same species living in a particular area?
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10.
Name one problem caused to the environment by spreading too much fertiliser on fields.
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11.
Which term describes an animal that kills and eats other animals?
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12.
Which scientific term means a species that has been introduced to a new area?
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13.
How does eating more animals for food affect food security?
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14.
Which term describes animals that eat plants or algae?
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15.
Which term describes the non-living factors of an environment, such as temperature, light intensity and water availability?
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16.
How can fish farming increase the biodiversity of wild fish communities?
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17.
How does the malaria protist benefit from being inside a human?
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18.
Which term describes the struggle between organisms for a limited resource?
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19.
In what form is carbon in the atmosphere?
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20.
What is food security?
A.
(consumers)
B.
(herbivores/primary consumers)
C.
(suitable for drinking)
D.
(abiotic factors)
E.
(needs more land than growing food crops)
F.
(any suitable, e.g. eutrophication of water, death of fish in rivers)
G.
(predator–prey cycle)
H.
(carbon dioxide)
I.
(population)
J.
(any two groups that are producers, e.g. plants, algae)
K.
(reduced capture of wild fish for humans to eat)
L.
(e.g. to replace fossil fuels/reduce carbon emissions/reduce problems of climate change)
M.
(predator/any consumer apart from primary)
N.
(anything suitable, such as: gets nutrients, multiplies in number)
O.
(any suitable carbon-containing compound, e.g. sugars, fats, proteins, DNA)
P.
(competition)
Q.
What is food security? (enough food for everyone)
R.
(any suitable, e.g. bacteria, fungi,microorganisms)
S.
(reforestation)
T.
(non-indigenous/ non-native)
Type the Answer that corresponds to the displayed Question.
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21.
Which process causes the formation of clouds of water droplets from water vapour in the air?
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22.
Which process in plants takes water from the soil and passes it to the air?
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23.
Which term means protecting species or their habitat?
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24.
Which term measures the dry mass of all living tissue in an organism?
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25.
Which term describes organisms, such as plants or algae, that make their own food?
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26.
Is predation an abiotic or biotic factor in ecosystems?
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27.
Which term means the number of different species living in an area?
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28.
Which term means planting new trees in a large area where trees were cut down?
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29.
Which method can be used to study the distribution of organisms (how they are spread) in a straight line through an ecosystem?
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30.
Much of the salmon sold in supermarkets comes from fish grown in pens or pools. What is this method of production called?

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