What effect would an increase in duckweed have on a pond ecosystem ? A. The duck population would decrease due to a lower food supply

B. The fish population would increase due to an increased food supply

C. The underwater plant population would decrease due to decreased sunlight

d. The algae population would increase due to higher levels of oxygen in the water.

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus

some inherited genetic mutations can be good for the offspring, so the answer is different genetic mutations cause many forms of cancer.