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Biology and Society (BY11001_F25)

Biology and Society (BY11001_F25)

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Nitrogen-fixing bacteria convert atmospheric nitrogen (N2 gas) into ammonium (NH4). Why is this conversion important for life on Earth?

Nitrogen gas leads to global warming.

Ammonium is an important cleaning agent.

Ammonium is a very important plant nutrient.

Nitrogen gas is toxic.

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What events can lead to offspring having a unique arrangement of their parents' genes?

Both crossing over and point mutation

Crossing over

Point mutations

Neither crossing over nor point mutation

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What is a plant organ?

There is no such thing as a plant organ; organs are only found in animals.

A group of tissues that work together to perform a specific function

A group of systems that work together to perform a specific function

A group of cells that work together to perform a specific function

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What term describes the failure of one species' sperm to fertilize the egg of a different species?

Gametic incompatibility

Behavioral isolation

Hybrid weakness

Mechanical incompatibility

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Which principle states that no two species competing for the exact same resources can coexist?

Complex community network principle

Competitive exclusion principle

Resource partitioning principle

Dominance species principle

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Where would you find the double-stranded HIV DNA in an infected cell?

Incorporated directly into the host cell's DNA

In a vesicle in the cytoplasm

As a separate plasmid in the host cell's nucleus

There is no HIV DNA. It exists only as RNA.

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The Asian kudzu bug (Megacopta cribaria) arrived in Atlanta in 2009 and is quickly spreading across the South. In addition to eating kudzu, it also eats soybeans and can decimate entire crops. The kudzu bug is a type of ________ species.

control

umbrella

keystone

invasive

100%

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What does the term biogenesis mean?

Formation of life from nonliving materials

Formation of self-replicating molecules

Formation of life from other sources of life

100%

Formation of polymers from organic monomers