3. The sex cells or gametes of a female animal is called A. egg cells C. both sperm and egg cells B. sperm cells 4. It takes place when sex cells or gametes from two parent animals (one male D. none from the choices and one female) unite to form a new animal. A. Sexual reproduction C. Both A and B B. Asexual reproduction D. NONE 5. When does fertilization take place? A. when the egg cell mature and die B. when the sperm cell mature and die C. when the egg cell unites with the sperm cell D. when both egg and sperm cell mature and die 6. Reproduction in animals is best described as the A. process of producing its own kind B. changes that happens as animal grows C. process of breaking down food into simpler substance D. process of exchange of gases 7. Which of these animals is born alive? A. frog B. chicken C. dog D. fish 8. Which of the following animals can reproduce by external fertilization? A. eagle B. frog C. lizard D, tarsier 9. Chicks are hatched from eggs. Goats are born alive and look like their parents. Frogs undergo many changes as they grow, likewise with butterfi What do these observations prove? A. All animals are born alive B. All animals are hatched from eggs. C. Different animals move in different ways. D. Different animals reproduce in different ways. 10. Why is reproduction important to living organism? A. It controls the body parts B. It converts food into nutrients C. It collects and removes wastes D. It ensures continued existence of the organisms.​