These terms are fairly intuitive. External means outside. Internal means inside. Fertilization occurs when the male gamete (sperm) meets the female gamete (egg). External fertilization is...
the mosquito! have a external fertilization ,by its mother mosquito it bite some people and get a blood and it will produce some eggcells to do a young.......
internal means inside external means outside fertilization occurs when the male gamete or sperm meets the female gamete egg. fertilization usually happens in the female body