1. The ostrich and the penguin are featherless birds.   True   False   2. Reptiles have _______ for respiration.   gills   stomata   lungs   Hint Half-n-half Clue   3. The egg of a mammal attaches itself to the wall of the uterus by a placenta.   True   False   4. Milt from the hard roe of the male fish fertilizes the ova.   True   False   5. Pick the "odd one out".   Alligator   Turtle   Newt   Crocodile   Tortoise   Half-n-half Clue   6. The eggs of a female fish are known as soft roe.   True   False   7. The pelvic fins of a fish correspond to the front limbs of a mammal.   True   False