3. Подставьте пропущенные слова.
Bacteria are tiny 1)..................... plants without green 2) .................... matter (chlorophyll) that can be seen only under a microscope. Bacteria come in many 3) .................. sizes but in three 4) .................... shapes: 5) .................... , the bacilli; 6) .................... , the cocci; and 7) .................... , such as the corkscrew spirochaete. The discovery that bacteria cause disease was one of the greatest advances in medical science. Chief credit for the germ theory of disease goes to the 8) ................. chemist, Louis Pasteur, and the 9) ................. country doctor, Robert Koch. Their 10) .................... work was done in the 19th century.
infectious
different
virulent
German
heart-shaped
dot-shaped
one-celled
lifesaving
colouring
spherical
spiral
principle
pear-shaped
French