Place the word true or false in the blank preceding each statement as appropriate. Sexual reproduction frequently results in much variety among offspring. The chorion is an extraembryonic chicken membrane whose chief function is food storage. Most amphibians have external fertilization and external develoment as their chief mode of development.
Fertilization occurs when the egg and sperm fuse and join.
The egg of the female is much smaller than the sperm. The egg is able to move under its own power by its flagellum in the human. The male gonads are called the testes and the female gonads are called the ovaries. Gonads are organs which produce sex cells. The human egg or sperm contains 92 chromosomes.