Lec 1 key concepts

Question 1

what is the scientific method?

Answer 1

an evidence-based system for understanding our world, including living organisms.

Question 2

why all living organisms share certain key characteristics?

Answer 2

Because of their common evolutionary origin

Question 3

What is science?

Answer 3

a body of knowledge about the natural world and an evidence-based process for generating that knowledge.

Question 4

what is biology?

Answer 4

the scientific study of the living world

Question 5

where does scientific inquiry start?

Answer 5

begins with observations of nature.

Question 6

The Scientific Method involves

Answer 6

generating and testing hypotheses about those observations.

Question 7

Hypotheses can be tested with

Answer 7

observational studies.

Question 8

A Scientific Fact

Answer 8

is a direct and repeatable observation of a particular aspect of the natural world.

Question 9

A Scientific Theory

Answer 9

is a major explanation about the natural world that has been repeatedly confirmed in diverse ways and is accepted as part of scientific knowledge.

Question 10

All living organisms

Answer 10

are composed of one or more cells, reproduce using DNA, acquire energy from their environment, sense and respond to their environment, maintain their internal state, and evolve.

Question 11

Biological Evolution

Answer 11

is a change in the overall genetic characteristics of a group of organisms over successive generations.