Answer:
C. Sometimes molecules need to move from low to high concentrations.
Explanation:
A base substitution of G:C to A:T after two rounds of replication.
Storing energy because it’s not with the other energy
Answer:
cells have different shapes because they do different things
Explanation:
Each cell type has it's own role to play in helping our bodies work properly and their shapes help them to carry out these roles effectively
