Answer:
The epidemic caused us to quarantine if we got infected to protect those around us.
Explanation:
Answer:
between c. 95,000 and c. 20,000 years
Explanation:
Proteins are polymers of amino acids. There are a fixed set of amino acids that are involved in the making of a protein. These amino acids are varied in number and type to give rise to different combinations in a polymer. This creates a diversity of protein molecules.
The amino acids link to other amino acid in the polymer through the formation of a peptide bond between them. It forms when the carboxylic group of one amino acid molecule reacts and binds to the amino group of the other molecule.
It might involve changing to survive different temperatures such as when lakes freeze over or a lake is too hot.