III. Read each statement carefully. Write TRUE if it is correct and FALSE if not. True 11. Reproduction of butterflies starts when mating begins. 12. Male butterflies can mate more than once while female butterflies only mate once throughout their lives. 13. Not all frogs reproduce sexually. 14. The fertilization in frogs happens outside the female's body. 15. Reproduction by mosquitoes begins with courtship. 16. Mosquitoes only mate once. 17. Dogs experience heat cycle which lasts for 4 weeks. 18. The length of pregnancy in dogs is 61-65 days average 63 days. 19. Cats can go into heat at any time of year, just like dogs. 20. Reproduction among cats begin through the estrous (reproductive) cycle when they reach puberty.​