Microorganisms and Viruses

What you need to learn in this topic

1. Identify the main characteristics of microorganisms and viruses: (i) bacteria. (ii) protozoa. (iii) algae. (iv) fungi. (v) viruses
2. Describe the role of microorganisms in the nitrogen cycle
3. Describe the role of microorganisms as: (i) producers. (ii) decomposers. (iii) symbionts. (iv) parasites
4. Define the terms: (i) pathogen. (ii) vectors
5. Describe the effects of pathogens on human health