precociouspuberty		a woman's fertile period can last this many days
puberty		hormone produced by the ovaries
gametes		during in vitro fertilization egg and sperm are combined ________ the body
head		only males have these endocrine glands
aggression		number of chromosomes in a gamete
outside		germ line cells are stem cells that can develop into these
infection		this gland produces FSH
egg		genetic material is located in this part of the sperm
hormone		these drugs can cause testicles to shrink
steroids		female infertility can be due to an untreated ________
recessive		going through this process allows people to reproduce
cocaine		precocious puberty in boys is usually caused by this type of problem
sperm		precocious puberty in boys can cause this
sex		this gland produces GnRH
meiosis		the male gamete
hormones		a part of the sperm that contains enzymes to break through the egg wall
testosterone		a chemical messenger
seven		inbreeding leads to increased expression of these types of traits
uterus		one possible cause of delayed puberty
medical		release of the endometrium
menstruation		the process by which germ line stem cells replicate
asexual		only females have these endocrine glands
mitosis		early puberty may be called this
pituitary		use of this drug can decrease sperm count
testes		during artificial insemination semen may be placed in this
progesterone		the female gamete
acrosome		the process by which most body cells replicate
hypothalamus		the Tanner scale describes primary and secondary _____ characteristics
estrogen		release of a mature egg from the ovary
ovulation		this hormone helps the female body maintain pregnancy
twentysix		hormone produced by the testes
ovaries		this type of reproduction leads to limited genetic diversity
chronicillness		the presence of these in our foods may contribute to precocious puberty