a. Many lack legs during their life b. Most have developed a lateral line system c. Most depend on outside water sources to keep their body moist d. Many spend part of their life in the water and part of it in land
3. Which mammal is NOT marsupial?
a. anteater b. kangaroo c. sugar glider d. opossum
4. Which is the criterion for classifying animals into vertebrates and invertebrates?
a. way of production b. kind of body covering c. presence or absence of backb9 d. food eating and ways of getting food
5. Which does not describe an insect?
a. It has hour pairs of legs b. It has two pairs of wings c. It has a pair of antennae d. It has head, thorax and abdomen
