2 years ago

WhY is the cycling of Nitrogen for biological systems important

1 answer:

5 0

Answer:

Nitrogen is an essential nutrient for plants and a significant component of proteins, which all animals need to grow, reproduce and survive. The nitrogen cycle converts nitrogen into compounds that plants and animals can use. Humans and Animals Need Nitrogen All human tissue – muscles, skin, hair, nails and blood – contains protein.

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A chemical mutagen that is structurally similar to a nucleotide but has different base-pairing rules is called a ________.

OLga [1]

Answer:

Nucleoside analog

Explanation:

Nucleoside analogs are the mutagenic chemicals that have a structure that is similar to the normal bases of the nucleotide and thus can be incorporated in the DNA during the process of replication, however as it has different base-pairing rules than the normal nucleotide base it can lead to mutations.
An example of a nucleoside analog is acyclovir which an analog of guanosine.

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_____ is a public relations strategy that involves getting a product, service, or company name to appear in a movie, television

atroni [7]

Answer:

product placement

Explanation:

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If you walked north from the equator 10°, how would you expect Polaris to move?

Sidana [21]

Answer:

It would appear to rise from the horizon to 10° above the horizon. Keep gong north until you reach the North Pole and the pole star will appear directly overhead.

Explanation:

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What is the source of almost all energy on Earth?

Rus_ich [418]

I believe it is the sun, have a good day!

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Which of the following indicates that only a physical change has taken place?

siniylev [52]

A change in the color of a substance -- this one is indeed a chemical change. Think of iron, if iron turns reddish, it's a completely different substance.

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