The purpose of saliva serves in digestion is to breaks down complex carbohydrates. The correct option is (A).
<h3>What is saliva?</h3>
Saliva is a transparent liquid secreted by glands present in the mouth. Saliva is an important secretion for the digestion of food in the mouth.
It is made up of water and many digestive enzymes are present in the saliva, which help in digestion of complex carbohydrate like starch.
Thus, the correct option is A) breaks down complex carbohydrates.
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What are the answer choices ?
It destroys the internal organs until they fail.
We can confirm that resource scarcity, competition, and the survival of organisms are in fact all directly interconnected.
<h3 /><h3>How are resource scarcity, competition, and the survival of organisms connected?</h3>
This is all started with resource scarcity. The unavailability of resources creates competition between organisms of an ecosystem since there is not enough food, water, or another resource for all organisms present.
This inevitably leads to the death of the organisms that are not able to compete for the scarce resources and the survival of the most adapted to this change.
Therefore, we can confirm that resource scarcity causes organisms to compete in order to survive, for which reason these three factors are connected.
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