1. Reptiles have _______ for respiration.   lungs   stomata   gills   Hint Half-n-half Clue   2. Which of the following vectors is a vertebrate?   Cockroach   Tsetse Fly   Rat   Flea   Mosquito   Half-n-half Clue   3. The male rat produces sperms in a pair of _______.   testes   ovules   ovaries   Half-n-half Clue   4. Milt from the hard roe of the male fish fertilizes the ova.   True   False   5. The eggs of a female fish are known as soft roe.   True   False   6. The egg of a mammal attaches itself to the wall of the uterus by a placenta.   True   False   7. Pick the "odd one out".   Turtle   Tortoise   Newt   Crocodile   Alligator   Half-n-half Clue