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two parents give rise to offspring that have a unique combination of genetic material;two gametes involved
a parent cell divides into two new daughter cells the same size as the parent with the same kind and quantity of DNA.
a cell undergoes a series of cell divisions inside its own cell wall. Each new cell produces a thick wall of its own, and the old cell wall becomes a spore case holding small thick-walled cells, the spores. These grow into new individuals
period of rapid growth and sexual maturation during which the reproductive system becomes fully functional. Secondary sex characteristics develop; LSH and FH levels are increased.
males secondary sex characteristics
growth of facial and body hair, increase in body size, and deepening of the voice
females secondary sex characteristics
development of the reproductive system, widening of the hips, and development of the breasts.
male reproductive structures
testes, the epididymis, the vas deferens, the urethra, and the penis. they produce and deliver sperm.
contractions of the smooth muscles lining the glands in the reproductive tract causes sperm cells to be ejected from the penis
female reproductive structures
ovaries, the Fallopian tubes, the uterus, and the vagina. In addition to producing eggs,
an egg develops and is released from an ovary, if the egg is not fertilized it is discharged along with the lining of the uterus
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