B. Write the correct letter of your answer on the blank before each number.


6. Which is the criterion for classifying animals into vertebrates and invertebrates
a. Way of production
c. presence or absence of backbone
b. Kind of body covering
d. food eating and ways of getting food


7. Which of the following group of animals are invertebrates?
a. Dog, hen, horse
c. bird, turtle, snake
b. Lizard, frog, fish
d. spider, crab, scorpion


8. Which of the following is NOT true about birds? All birds
a. Can fly
c. are covered with feathers
b. Have wings
d. are warm blooded animals


9. Which of the following BEST describes a mammal? They
a. Give birth to live babies
c. have fur and body covering
b. Breathe with their lungs
d. have mammary glands to feed their young


10. Which of the following are the importance of Invertebrates?
a. Insects help in pollination
b. Insects are source of food and medicine
C. Contributes to the fertility of soil
d. All of the above

NOTE: Please help since monday na pasahan and NO NONSENSE.

/srs​