Abiotic factors are factors that are not caused by the activities of living organism
examples rain, wind, temperature and sunlight
Circulatory system
The circulatory system is the transport system for endocrine information. While the nervous system uses neurons, the endocrine chemicals and hormones must circulate through the body via blood vessels. Many glands in your body secrete hormones into the blood.
Explanation:
Production of gametes e.g sex cells.
Meiosis is a process which its to make daughter cells which are half the chromosome as the starter cell so the whole cell before it split