Directions . On the space provided , write TRUE if 15. The penis is an internal part of the male the statement is correct and if it is false, reproductive organ that leads the fluid and underline the word that make it incorrect. Then sperm outside the body. changed the underlined word or group of words to make the whole statement true. 1. Fertilization occurs in the fallopian tube. 2. The primary function of the testes is to produce sperm and progesterone. 3. It is in the ovary where the fertilized egg develops 4. The scrotum is the external sac of skin that holds and protects the testis 5. The start of adolescence is called puberty. 6. Humans reproduce asexually. 7. Hormones are chemicals secreted by the endocrine system which affect the activities of reproductive organs. 8. The secretion of hormones is regulated by the mammary gland . 9. The primary reproductive organs are the testes for males and the ovaries for females. 10. The main function of the male reproductive system is to produce and deliver sperms and secrete testosterone. 11. Some secondary sex characteristics developed in males during puberty are enlargement of the voice box, growth of body hair and development of broad pelvis. 12 . The vagina serves as entry of sperm and is considered the birth canal. 13. The development of breasts (mammary glands ) is dominant in males . 14. Semen and urine pass through the urethra