52 chromosomes. Somatic cells (or body cells) all have a diploid number of chromosomes... its sex cells (or gametes) would have half the number (26).
I'm going to say since I cannot see the graph i'm guessing that it shows an enzyme at its peak and lowering so i'm going to say the first one 1) There is a specific pH range in which the enzyme effectively lowers the reaction's activation energy
Answer:
A pure substance can only be made up of one kind of atom
