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learning task 1: choose the correct answer. write your answers on your answesheet. p.28

1. birds are able to fly because _______.
a. they are able to control air current
b. they have colorful feathers.
c. they have light and hollow bones.
d. they have scales all over their bodies.

2. which of the following is not considered a worm?
a. ascaris
b.fluke
c. planaria
d. milipede

3. which of the following animal is not vertebrate?
a. frog
b. birds
c. reptiles
d. insects

4.which of the following animal is a vertebrate?
a. worms
b. snakes
c. snail
d. jellyfish

5. between 90%–95% of animal on earth can be classified as________
a.invertebrates
b. vertebrates
c.reptiles
d. mammals​