Vitamin D mostly helps the body absorb calcium (which we need for strong bones) and helps keep immune systems strong. Vitamin D deficiency leads to more flu and colds, fragile bones, weak muscles, high blood pressure and depression. Deficiency can lead to hundreds of diseases.
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Bacteria its important becUse u want to make sure if doesn't contain it.
Nutrients are important because withouth the nutrients in water theres no way for us to have the energy it provides us.
Because we know that 15% of the population does not have the allele we can assume that at least 85% of the population has at least on copy of the dominant allele.
It provides the energy for photosynthesis due to the fact the plant needs to have energy to make food
