Lab: Disease Spread — Unit test Answers

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F
Fossil fuels are cheaper than alternative forms of energy.
F
Fossil fuel reserves will never be depleted.
F
Fossil fuels are easily renewed.
F
Fossil fuel use does not affect the environment.
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Which describes a way in which phosphorus may enter into the phosphorus cycle?

E
Earthquakes release phosphorus.
P
Phosphorus is carried in the rain that was evaporated from lakes.
H
Human use of fertilizers release phosphorus into the groundwater.
P
Phosphorus is transpired from the leaves of plants.
5

Which biome receives 200 to 400 cm of rain per year?

A
deciduous forest
B
temperate rain forest
C
taiga
D
grassland
6

Which best matches objects that a scientist would include on a list describing a forest ecosystem?

A
different types of animals and plants and the forest soil
B
one animal species, the soil, water, and nutrients
C
all the living things in the forest ecosystem
D
different types of soil, rocks, and water sources in the forest
9

What is the difference between a community and a population?

A
A community has only one organism, while a population has many organisms.
B
A population has only one ecosystem, while a community has many ecosystems.
C
A community has only one biome, while a population has many biomes.
D
A population has only one species, while a community has many species.
10

Review the picture below.Which would be the most accurate title for this picture?

Question illustration
p
primary succession after a controlled fire
p
primary succession after a volcanic eruption
s
secondary succession after a controlled fire
s
secondary succession after a volcanic eruption
11

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P
Plants fix carbon and release oxygen, and animals release carbon and use oxygen.
A
Animals fix carbon and release oxygen, and plants release carbon and use oxygen.
A
Animals fix carbon through respiration, and plants fix carbon through photosynthesis.
P
Plants decompose fixing carbon, and animals decompose releasing carbon.
13

most

m
myofibrillar proteins in muscle
g
glucose molecules in starch
f
fat molecules surrounding organs
c
cellulose molecules in plant cell walls
16

Which biomes would be the coldest?

A
deciduous forests and savannas
B
tundras and taigas
C
deciduous forests and taigas
D
tundras and savannas
17

The phosphorus cycle differs from the biogeochemical cycles in that

A
it does not have an atmospheric reservoir.
B
it does not have an oceanic reservoir.
C
there is no assimilation of phosphorus.
D
there is no decomposition of phosphorus.

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