A host cell is the answer.
The correct option is (D).
An amino group and carboxylic acid group are the most basic common components in all amino acids. While, R group in the amino acids always different (here R describes the alkyl group).
Organic substances having both amino and carboxylic acid functional groups are known as Amino acids. Alpha-amino acids, which make up proteins, are by far the most significant of the hundreds of amino acids found in nature.
Amino acids perform a variety of processes in our body including muscular growth, delivering nutrition, prevent disease, and many more. A lack of certain amino acids can lead to a variety of health concerns, including lowered immunity, digestive disorders, depression, less mental alertness, slower child growth, etc.
There are total 20 amino acids, out of them 9 are essential amino acids means they are not synthesis by our body they must be taken outside from diet and nutrition.
To learn more about amino acids, refer this link.
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The blank should say “anything”
Inhibition
It is a mechanism of succession in which one species decreases the probability that a second species will become established. Common causes of inhibition include competition, predation, and parasitism.
<h3>What is succession ?</h3>
The method by which a biological community's structure changes over time. Primary and secondary succession have been identified as two distinct forms.
- Even in societies at their peak or in maturity, succession can occur. For instance, when a tree falls in an established forest, sunlight may once more be able to penetrate the forest floor, allowing new growth to start. In this instance, fresh, smaller plants would be the first in the succession. Communities are ever-evolving and expanding.
Learn more about Succession here:
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Lung cancer .....is a guess but then again there are no options sooo....
