1. Which of the following mammals is a herbivore?   Hippopotamus   Walrus   Dolphin   Bear   Lynx   Hint Half-n-half Clue   2. The pectoral fins of a fish correspond to the hind limbs of a mammal.   True   False   3. The male rat produces sperms in a pair of _______.   ovules   ovaries   testes   Half-n-half Clue   4. Which of the following birds uses its feet for climbing?   Woodpecker   Parrot   Duck   Eagle   Thrush   Half-n-half Clue   5. The ostrich and the penguin are featherless birds.   True   False   6. A fish propels itself through water with the help of its _______.   tail   fins   scales   Half-n-half Clue   7. Milt from the hard roe of the male fish fertilizes the ova.   True   False