B5.2 Evolution

Question 1

What is artificial classification?

Answer 1

When classification is based purely on observations.

Question 2

What is the Linnaean system?

Answer 2

Living things divided into kingdom, phylum, class, order, family, genus and species

Question 3

What is natural classification?

Answer 3

Developed based on some key advances in Biology: improvements in microscopes, studies of biochemistry and DNA evidence.

Question 4

What is phylogenetics?

Answer 4

The study of evolutionary relationships.

Question 5

Describe the process of natural selection.

Answer 5

1. Populations are naturally varied due to random genetic mutations.
2. Some of these mutations provide a selective advantage.
3. These organisms survive and reproduce, passing on the successful genes.

Question 6

Define evolution.

Answer 6

Evolution is a change in the genetic makeup of a population over time due to natural selection.

Question 7

What are two pieces of evidence for evolution?

Answer 7

1. Fossils
2. Antibiotic resistance