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Author Quiz
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1

A food chain always begins with
A)mutualistic decomposers.
B)photosynthetic autotrophs.
C)pathetic instructors.
D)heterotrophic consumers.
2

A biome is
A)found in a community.
B)primarily determined by temperature and rainfall conditions.
C)part of a niche.
D)at its carrying capacity.
3

Nitrogen is
A)obtained by plants from the atmosphere.
B)released into the atmosphere by consumers.
C)released to the atmosphere by nitrogen-fixing bacteria.
D)required by all organisms to be part of the structure of amino acids.
4

The carbon cycle involves
A)decomposers that release carbon dioxide to the atmosphere.
B)plants that remove carbon dioxide from the atmosphere during photosynthesis.
C)predators that eat prey.
D)all of the above are true.
5

A population has reached its carrying capacity when
A)it is in the lag phase.
B)fewer organisms are being born than die.
C)the number of births and deaths are equal.
D)it is in the exponential growth phase.
6

Which one of the following represents a logical food chain?
A)grass-grasshopper-horse
B)producer-carnivore-herbivore
C)phytoplankton-zooplankton-fish
D)photosynthesis-respiration-decomposition
7

A niche is
A)a place where an organism lives.
B)the way an organism goes about living.
C)a kind of community.
D)an animal that is able to slip through a narrow opening.
8

The phosphorus cycle involves
A)bacteria that decompose organic molecules.
B)symbiotic nitrogen fixing bacteria.
C)plants using ammonia from the soil.
D)All of the above are correct.
9

An example of community is
A)a desert in which rainfall is less than 5 centimeters per year.
B)all the producers, consumers, and decomposers that interact in an area.
C)bees in a hive.
D)goldfish in a jar.
10

If the world were to support the largest possible human population, all humans would need to be
A)carnivores.
B)omnivores.
C)herbivores.
D)producers.







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