Answer:
D.It recycles and reuses organic molecules so they are not wasted.
Explanation:
Most of the fungi are decomposer so they gain their nutrition from dead and decaying matters. They release hydrolytic enzymes that help in the break down of dead organic matters of plants and animals and release the nutrition from them.
So they replenish and recycle the nutrient in the environment. They also protect the environment from pollution by degrading these dead organic matters. Therefore these organic matter are not wasted. Many fungi also live in symbiotic associations with algae and plants and help in their survival.
So the correct answer is D.It recycles and reuses organic molecules so they are not wasted.
They all divide people into different social groups.
Complex nutrients are digested and then absorbed into the bloodstream as monomers.
Nutrients from food can be used in the body only when are broken down to their basic units: carbohydrates in monosaccharaides, lipids in free fatty acids, proteins in amino acids and nucleic acids in nucleotides.
Those molecules together with water and minerals from the diet, are absorbed in the small intestine. The absorbed molecules are then transported into the bloodstream and carried to different parts of the body for usage, storage or chemical transformation. Some of the macromolecules are broken down in mouth (e.g. starch), or in stomach by the enzymes.
