Phenotype, physical appearance, is determined by the genotype, an organism's genetic makeup.
The correct answer is A / an incision is longer than it is deep while a / an puncture is deeper than it is long.
Explanation
The word incision is a term generally referred to as a medical procedure in which a superficial cut is made on a surface of the skin, of different lengths with the help of a very sharp blade. On the other hand, a puncture is a surgical procedure in which an organ is punctured deeply until it reaches an organ using a pointed instrument to extract liquids that it contains. According to the above, the answers that the paragraph completes are A. Incision and puncture.
Diatoms are single celled algae that form a silica based cell wall. They are broken up into two major groups, the centric diatoms and the pennants diatoms, based on the form of their frustule.