A triploid cell is the structure form during angoisperm fertilization. The cell are created in the process known as double fertilization into the endosperm which is mostly are polyploid. These are typicallly triploids that is they contain three sets of chromosomes but they varies widely from diploid (2n) to 15N.
Longitudinal waves move parallel to the direction of wave motion.
Transverse move perpendicular.
I think the answer in this is c because it shows how the scientist worked in feilds
