Q1. What is the dissimilarity between net primary production and net primary productivity? What is the relationship between net and gross primary productivity and what are the factors that affect net and gross primary productivity? What are their applications and how to measure them?

Q2. What are the three major species of Staphylococcus? Why one of them is more pathogenic compared to the other two species? Which factor determines the pathogenesis of the organisms?

What substance is known as the “spreading factor?” How does the “spreading factor” aid an organism in its quest to penetrate the host cell?