Cuz they combine during fertilization and since 2 halves = 1 whole, u get gametes w a full number of chromosomes
Answer: Any of a number of organized or specialized structures within a living cell.
Explanation: Hope this helps
<span>Pleural sac is a two
layered membrane formed when a serous membrane known as pleura folds back onto
itself. Thus, the pleura invest the lungs and line the walls of the thoracic
cavity. However, the potential volume of the thoracic cavity increases during
inhalation.</span>