1. The male rat produces sperms in a pair of _______.   ovaries   ovules   testes   Hint Half-n-half Clue   2. Which of the following mammals is a herbivore?   Dolphin   Bear   Lynx   Hippopotamus   Walrus   Half-n-half Clue   3. The pelvic fins of a fish correspond to the front limbs of a mammal.   True   False   4. The body of a fish is _______.   streamlined   hairy   intruded   Half-n-half Clue   5. The pectoral fins of a fish correspond to the hind limbs of a mammal.   True   False   6. The ostrich and the penguin are featherless birds.   True   False   7. Which of the following vectors is a vertebrate?   Cockroach   Flea   Tsetse Fly   Mosquito   Rat   Half-n-half Clue