Task 2. 1. Only about one tenth of the cells in your body are ...
A. alive.
B. Really you
C. bacteria.
2. Bacteria are mostly ...
A. helpful.
B. bad for humans.
C. neither good nor bad.
3. Animals need bacteria to ...
A. fight diseases.
B. provide energy.
C. Digest food.
4. You have cells in your body.
A. 7 million
B. 7 trillion
C. 7 octillion
5. Most of the atoms are ...
A. tiny cubes.
B. not used.
C. empty space.
6. You probably have mites in your ...
A. hair.
B. ears.
C. eyelashes.
7. Mites are very small creatures that are about ...
A. 3 millimeters long.
B. A third of a millimetre long.
C. 0.03 millimetres long.
8. Mites eat ...
A. dead skin.
B. your eyelashes.
C. tiny insects.
1. Only about one tenth of the cells in your body are really you.
B)
2. Bacteria are mostly helpful.
A)
3. Animals need bacteria to digest food.
C)
4. You have 7 octillion cells in your body.
C)
5. Most of the atoms are empty space.
C)
6. You probably have mites in your eyelashes.
C)
7. Mites are very small creatures that are about a third of a millimetre long.
B)
8. Mites eat your eyelashes.
B)