What are the answer choices
Answer:
It helps cells make proteins.
It provides a source of water
It provides form of usable Nitrogen.
It removes carbon dioxide from the atmosphere.
It destroys harmful bacteria.
There are many fish and other large marine animals in the light zone becuse plankton (a main foodsource for many fish) is able to grow.
Let's discuss first about difference between micro- and macro-nutrients. Micronutrients are those which are needed in small quantities and their function is not that vast. But macronutrients are the ones which control all the metabolic cycles of the cell, so they are needed in large quantities. This is the basic difference between the two terms.
Proteins are macro-nutrients because they are needed in large amount, as they are involved in some of the most important functions of our body. For example, proteins act as enzymes, involved in immunity, maintaining homeostasis of the body, etc. That is why they are considered as macronutrients.
