Answer:
Natural selection is an important contribution to the theory of evolution because it increases an individual's ability to survive and compete and reproduce.
Explanation:
DNA replication occurs within the nucleus of a cell
The components of saliva include salivary amylase, bicarbonate and lingual lipase.
<h3>What is the components of saliva?</h3>
Saliva is the clear serous liquid the is secreted in the several salivary glands located at the buccal cavity of the head.
The components of saliva includes the following:
Salivary amylase and lingual lipase are salivary enzymes that are used for the onset digestion of carbohydrate and lipids respectively. While bicarbonate is one of the electrolytes found in saliva.
Therefore, the components of saliva include salivary amylase, bicarbonate and lingual lipase.
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There are only three elements in the above structural formula above:
