| A | B |
|---|
| asexual reproduction | genes come from one parent |
| sexual reproduction | creation of offspring by fusion of two gametes |
| zygote | formed when sperm and egg fuse |
| fission | separation of a parent into two individuals |
| budding | new individual splitting off from existing one |
| framentation | breaking of the body into several peices |
| regeneration | regrowth of lost body parts |
| parthenogenesis | egg developes without being fertilized |
| hermaphrodistim | individual has both male and female reproductive systems |
| external fertilization | eggs are shed by female and then fertilized by male |
| internal fertilization | sperm are deposited in the female tract and egg and sperm unite within her body |
| gonads | organs that produce gametes in most animals |
| testes | male gonads |
| ovaries | female gonads |
| orgasm | rythmic, involuntary contractins of the reproductive structures of both sexes |
| spermatogenesis | the production of mature sperm cells |
| oogenesis | the development of ova (mature unfertilized egg cells |
| meiosis | a cell division that divides the number of chromosomes in half |
