Animals defend their territories because it’s kinda a instinct and they want to be in charge
Alot of humans might not now they are even harming the systems by smoking or littering.
Ovaries produce and release two groups of sex hormones—progesterone and estrogen. There are actually three major estrogens, known as estradiol, estrone, and estriol. These substances work together to promote the healthy development of female sex characteristics during puberty and to ensure fertility.
i would say that the answer is ( A )
