Genetic variation in bacterial populations cannot result from
a. transduction c. mutation
b. conjugation d. meiosis.

d. meiosis

Explanation:

Bacterial cells don't go through meiosis, it is unique to the eukaryotic cells.

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.