Micro organisms

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

1. are rod shaped bacteria.

2. are comma shaped bacteria.

3. are spiral shaped bacteria.

4. are spherical or ball shaped bacteria.

5. is a substance produced by living organisms which is toxic for other organisms.

6. causes tuberculosis in human beings.

7. Microbes can fix atmospheric gaseous as in the soil.

8. Microbes act as natural agents and protect crops from pests.

9. attack insects which harm the plants.

10. Bacteria are single-celled