Based on new information from the Human Microbiome Project, the human body typically begins to be colonized by its normal biota _______.

Broad-spectrum drugs that disrupt the body’s normal biota often cause _______.

Beta-lactams are selectively toxic because _______.

Sterilization is achieved by which method?

Which two antibiotics affect nucleic acids of bacteria?

A superinfection results from _______.

8.3 Ivory is a type of crop the African farmers farmed with. (1)

1.1 The San moved around a lot, and because of that they were known as ________ people. (1)

QUESTION 3: Contextual questions Read the following extract and answer the questions that follow NOTE: Not all the answers can be found in the text Click on the button below to open the text for this question (Section B Question 3). The image will open in a new Internet tab DO NOT close THIS tab with your quiz on it, and carefully navigate between this tab and the tab with the image on it.  

2.2 Explain what ‘Archaeology’ is.  (2)