Is spread from one person to another through a variety of ways that include: contact with blood and bodily fluids; breathing in an airborne virus; or by being bitten by an insect.
The answer is 700 milligrams needed toddlers should consume
per day. Children need enough calcium to support their growing bones and teeth.
Calcium is one of the body's most essential minerals and also has other necessary
roles to play, including supporting a healthy nervous system and muscle
function.
What is a virus ?
Viruses are not made out of cells. A single virus particle is known as a virion, and is made up of a set of genes bundled within a protective protein shell called a capsid. Certain virus strains will have an extra membrane (lipid bilayer) surrounding it called an envelope.
Water is an important transport and reaction medium
hope this helps :)