1.The first stage in human development, ____________________,takes place in the uterine tube when sperm cells encounter asecondary oocyte.
2. The single cell that results when a sperm and an ovum uniteis called a _______________
3.Inherited traits determined by genes specifically located inthe sex chromosomes are called __________________________traits.
4.Chemical messengers secreted into the bloodstream by endocrineglands, that initiate a change in a target cell are called____________________
5.The hormone, produced by the anterior pituitary gland, thatstimulates the mammary glands to produce milk is________________________
6.The hormone, made by the hypothalamus and secreted from theposterior pituitary, that stimulates ejection of milk andcontraction of the uterus is __________________
7. The hormone, made by the pancreas, that increases the uptakeof glucose into cells, thus lowering the level of glucose in theblood, is ___________________
