Why must the number of chromosomes in the sperm and egg be half the number of chromosomes in the other cells of an organism?

when fertilization takes place, the half of the chromosomes from the egg combine with the half of the chromosomes from the sperm to form a full 23 pairs of chromosomes which contain the genes of the offspring.

the answer is c most of the fortnite players usually buy v bucks to get the battle pass and other cosmetics but some players who are referred to as "no skins" don't   buy skins and are usually noobs.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex