What is a bacteria bigwig? what might that person do for a career?

What’s the difference between extract and abstract as nouns and verbs?

What are the benefits of secondary source

Which piece of information about doris lessing would more likely be found in the new york times article "doris lessing wins nobel prize in literature" than in the "doris lessing" biographical video? the opinion lessing has of the current political climate in south africa description of the home which lessing and her husband live in today