Hormones play an important role in the sexual maturity in a male and female. Sexual maturity in humans starts at puberty which is guided by hypothalamus by secreting hormone that acts on pituitary gland. The anterior portion of the pituitary gland in response secretes gonadotrophins. Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH) act on the gonads of female and male which secrete other hormones in the response. The testes of male secrets hormone androgen while the ovaries of female secrete estradiol. Estradiol and androgen are responsible for sexual characteristics of male and female.
They are important in long term memory because they respond faster in a second infection with the same pathogen
Newtons first law of motion have a very nice day
Jellyfish and corals are example of radially symmetrical. When you say radial symmetric, it's a kind of animal that has a surface that have a mouth in the center that can reach out in any direction to be able to catch and eat their foods.
Shellfish act as good natural filters. They consume waste and minerals from the surrounding water.
I hope this helps! :)