<h2>Answer:</h2>
As John is testing the effect of temperature on the solubility of sugar in water. To test this, he will measure the amount of sugar dissolved at different temperature level.
And then he will compare and conclude this that at what temperature how much sugar dissolved and how saturated and supersaturated solutions show a difference in concentration of sugar dissolved on the temperature difference.
Answer: They make sure that the body's pH, glucose, and iron are all at their proper levels.
Explanation:
C) many differmt types of species
Living things are made of types of molecules, known as macromolecules.
There are four major classes of biological macromolecules:
carbohydrates
lipids
proteins
nucleic acids
Each of these types of macromolecules performs a wide array of important functions within the cell; a cell cannot perform its role within the body without many different types of these crucial molecules. In combination, these biological macromolecules make up the majority of a cell’s dry mass. (Water molecules make up the majority of a cell’s total mass.) All the molecules both inside and outside of cells are situated in a water-based (i.e., aqueous) environment, and all the reactions of biological systems are occurring in that same environment.
The answer is "helps to classify the immense diversity of life"
This is because taxonomy is the branch of science conserned with classifing organisims.