Examlex
A penny has a mass of 3.0 g,a diameter of 1.9 cm,and a thickness of 0.15 cm.What is the density of the metal of which it is made?
Neurons
are the basic working units of the brain, specialized cells that transmit information to other nerve cells, muscle, or gland cells.
Sex Hormones
Hormones that regulate the development and functioning of reproductive organs and that stimulate the development of male and female sexual characteristics; they include androgens, estrogens, and progesterone.
Estrogen
Estrogen is a primary female sex hormone responsible for the development and regulation of the female reproductive system and secondary sex characteristics.
Progesterone
A steroid hormone released by the corpus luteum that stimulates the uterus to prepare for pregnancy.
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