Lab: Disease Spread — Unit test Answers

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tundratemperate rain forestdesertsavanna

tundra

temperate rain forest

desert

savanna

When describing a community, a biologist would identify every

population that lives together in an area.

biome that exists in the biosphere.

every organism that can produce offspring together.

every ecosystem that is part of a biome.

Which of the following would be a result of eutrophication of a lake?

undergrowth of water plants

hypoxia, or low levels of oxygen

decreased decomposition

inactivity of fertilizers

What is the effect of the biogeochemical cycles?

cycling energy through a food chain

recycling matter through the biosphere

recycling rocks through the layers of Earth

cycling nutrients through the human body

What process adds carbon dioxide to the air?

nitrogen cycle

water cycle

respiration

photosynthesis

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