Chapter 7 definitions

Question 1

Morphology

Answer 1

the form and structure of an organism or any of its parts

Question 2

Germ Theory of Disease

Answer 2

many illnesses are caused by the actions of microorganisms in the body

Question 3

Antibiotic

Answer 3

A medicine designed to kill microorganisms

Question 4

microevolution

Answer 4

the theory that natural selection and DNA changes can, overtime, take an organism and transform it into a more specialized version of that organism

Question 5

macroevolution

Answer 5

the hypothesis that natural selection and DNA changes can, over a long period of time, transform an organism into a completely different kind of organism

Question 6

Mutation

Answer 6

an abrupt and marked change in the DNA of an organism compared to that of its parents

Question 7

Digestive enzyme

Answer 7

a protein designed to break down chemicals found in food

Question 8

micronutrients

Answer 8

chemicals that are essential to nutrition but are required in relatively small amounts

Question 9

microbiome

Answer 9

the collection of all microscopic organisms living in and on a person’s body

Question 10

Denatured protein

Answer 10

a protein that has been changed by heat or another process, making it unable to perform its intended function