There's 39 chromosomes in the sperm cell. Why? Because sperm cells are gametes and therefore they are haploid cells meaning they have half the number of chromosomes of a regular cell or diploid cell.
78 / 2 = 39
The answer is
(wavelength)
The answer is a because it just is
The answer is the first one because it doesn't create gases and, the third one doesn't even make any sense so its definitely not that one
