Define a taxon. Give some examples of taxa at different hierarchical levels.
What are the steps involved in formation of a root nodule?
What is a mesosome in a prokaryotic cell? Mention the functions that it performs.
What is a centromere? How does the position of centromere form the basis of classification of chromosomes. Support your answer with a diagram showing the position of centromere on different types of chromosomes.
How does butter in your food gets digested and absorbed in the body?
Both lysosomes and vacuoles are endomembrane structures, yet they differ in terms of their functions. Comment.