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goblinko [34]
2 years ago
8

Nitrogen makes up a significant part of which class of biological compounds?

Biology
1 answer:
disa [49]2 years ago
6 0
Nitrogen is the most important constituent of the amino acids, which combine together to form peptides and proteins. Proteins are the building blocks and are involved in structure, functioning and regulation of various body parts. They are also present in the form of enzymes and are crucial. 
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Which two statements about first-person narration are generally true? The narrator can be a witness or a reteller of events. The
nirvana33 [79]

Answer: The narrator can be a witness or a reteller of events.

Explanation:

A first-person narration is a way of storytelling in which the storyteller narrates the first hand experiences. The narrator recollects or recounts the events specific for  a story through own point of view introducing oneself as first person. The narrator might have witnessed of all the events had taken place in past before telling the story.

7 0
1 year ago
Why is milk used as a first-aid remedy for someone who has swallowed a heavy-metal poison?
klio [65]
Human trials have indicated an inverse relationship between blood lead level and calcium intake. While milk isn’t an antidote to let’s say, lead poisoning, the dietary calcium inhibits the lead absorption. This sort of poisoning is incredibly dangerous to the systems of the human body, and the ingredients within the milk help to defend against it. The purpose of the milk is to dilute the ingested poison.
4 0
2 years ago
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Species X and species Y belong to the same domain. Species Y and species Z belong to the same kingdom. Based ONLY on this inform
Stells [14]

Species X and species Z belong to the domain.

Answer: Option A.

<u>Explanation:</u>

Species which belong to the same domain, they also belong to the same kingdom and also to the same phylum. These species are very similar to each other and can also produce offspring together.

In the information given, species X and species Y belong to the same domain. The next column says that the species Y and species Z also belong to the same domain. So species X and species Z will also belong to the same domain.

3 0
2 years ago
How does the enthalpy of photosynthesis compare to the enthalpy of cellular respiration?
Dovator [93]

Cellular respiration associates oxygen with glucose within the mitochondria to generate ATP; water and carbon dioxide are generated as well. Photosynthesis utilizes energy from sunlight to produce glucose and distinct oxygen from carbon dioxide and water.

The cellular respiration uses the outcomes of photosynthesis and photosynthesis utilizes the outcomes of cellular respiration at its initial stage.

Both the process of cellular respiration and photosynthesis exhibit an equal enthalpy. Thus, the correct answer is option A.

7 0
2 years ago
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A strand of DNA in a skin cell contains the bases: A-T-G-C-C-A-T-C-G-G-T-A After the cell is exposed to ultraviolet light, the s
Zarrin [17]

Answer:

<h2>A</h2>

Explanation:

1. As given, the of a strand DNA contain sequence;

A-T-G-C-C-A-T-C-G-G-T-A,

2. After exposure to UV light, the strand contain the bases;

A-T-G-G*-C-C-A-T-C-G-G-T-A,

3. By comparing both the strands, we find that, the strand of DNA after exposure to UV contain extra G nucleotide between G and C, which is resulted by an insertion.

So we can say that, a new base has been inserted.

6 0
2 years ago
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