Flora is plant life; fauna refers to animals. Fauna derives from the name of a Roman goddess, but the handiest way to remember flora and fauna is that flora sounds like flowers, which are part of the plant world, and fauna sounds like fawn, and fawns are part of the animal kingdom. Definitions of fauna.
The testes and ovaries, or gonads, are perhaps the most familiar endocrine glands. In males, testes produce sperm and secrete the male sex hormone testosterone; in females, ovaries produce eggs and the female hormone estrogen.It is these hormones that determine secondary sex characteristics like muscle mass and facial hair. They also help to orchestrate sperm production, menstruation and pregnancy.he testes and ovaries, or gonads, are perhaps the most familiar endocrine glands. In males, testes produce sperm and secrete the male sex hormone testosterone; in females, ovaries produce eggs and the female hormone estrogen.
How Hormones Work. Hormones are chemical messengers produced by one part of the body to. tell cells in another part of the body how to function, when to grow, when. to divide, and when to die. They regulate many functions, including. growth, sex drive, hunger, thirst, digestion, metabolism, fat burning and. storage, blood sugar and cholesterol levels, and reproduction. Sex hormonesregulate the development of sex characteristics â. including the sex organs that develop before we are born (genitals,