Answer:
A. Prokaryote - no nucleus
B. Eukaryote - multicellular
C. Prokaryote - bacteria
D. Eukaryote - nucleus
E. Both - Organism
F. Eukaryote - Insect
G. Prokaryote - Unicellular
H. Both - Cellular Respiration
Explanation:
The answer is reproductive isolation. Reproductive isolation ensures members of different species do not produce offspring. In this case, geographical separation is ensuring that individuals from the two different populations are not able to mate with each other. Eventually, through different selective pressures, the two populations will diverge sufficiently in genotype to become distinctly different.
The enzyme catalyzes (speeds up) the rate at which the substrate is broken down.
All of the above are needed. Nucleotides are the basic building blocks of new DNA, ATP energy is needed because replication is an active process, and enzymes catalyze the reactions needed to carry it out (e.g. helicase to separate the strands to be replicated, DNA polymerase to build the new strands, and ligase to "glue" the fragments together).
I think both of them are positive feedback