Unit 2 Vocabulary

Question 1

Causation

Answer 1

When a change in one factor results in a change in another.

Direct cause and effect!

Question 2

Correlation

Answer 2

A connection between two factors.

A relationship, not direct cause.

Question 3

Miasma

Answer 3

The Greek word for ‘pollution’ or ‘bad air.’

Question 4

Pure Culture

Answer 4

Bacterial culture composed of only one type, species, of bacteria that usually originates from a singe cell.

Question 5

Acid Reflux

Answer 5

Mucosal damage of the esophagus caused by stomach acid flowing into the esophagus from the stomach

Question 6

Control Group

Answer 6

During an experiment, the subjects in a control group are treated identically to the experimental group with the
exception of the tested factor, e.g., a drug, a procedure or another factor

Question 7

Endoscopy

Answer 7

A procedure used to examine a patient’s digestive tract. It is performed with an endoscope, a flexible tube
equipped with a camera and light to provide pictures of the digestive tract

Question 8

Placebo

Answer 8

Medically ineffective treatment such as a sugar pill