Answer:
There is evidence in fossils, the scientists can scan the fossil to see the date.
Explanation:
hope this helps
I think it is B, Mismatched nucleotides
he cell is the fundamental unit of structure and function in all living organisms.
Answer:
Most of the metabolic activities occur in the cytoplasm of the cell.
Cytoplasm is a gel-like fluid present within the cell. It consists of all the contents enclosed within a cell membrane excluding the nucleus.
It is mainly composed of water but also contains salts, enzymes, organelles, and organic molecules.
It is the main site for most of the cellular processes such as glycolysis (first stage of cellular respiration), protein synthesis, mitosis and meiosis etc.