The relationship between the fungus and algae of a lichen is known as a symbiotic relationship.
In this kind of relationship, the two organisms work together to create one stable unit.
Answer:
Food must be broken down into nutrients for the body to use for energy, development, and cell repair. Before the blood absorbs and transports nutrients to cells in the body, food and drink must be broken down into smaller nutrient molecules.
3% of the Earth's water is freshwater.<span />
The building block of nucleic acids are nucleotides. These consist of sugar, a phosphate, and a nitrogenous base.