EXAM 1/TOPIC 1: WK 1, CH 1, LECTURE VIDEO 2

Question 1

Why are observational hypotheses important?

Answer 1

We need to know if something is common/the norm/real before we spend resources researching “why” it is.

Question 2

What is an educated guess that may have some data to support it but not necessarily?

Answer 2

Hypothesis

Question 3

TRUE OR FALSE:

A hypothesis must be based on data, cannot be a free guess.

Answer 3

FALSE

it can be based on data OR a free guess

Question 4

TRUE OR FALSE:

A hypothesis must be testable or rejectable, but not both.

Answer 4

FALSE

it MUST be both

Question 5

What is a theory?

Answer 5

An explanatory statement or set of statements that is supported by a large quantity of scientific data; having been around for a long time as a hypothesis that hasn’t been proven false by data.

Question 6

TRUE OR FALSE:

Scientific Theories = Scientific Facts

Answer 6

TRUE

Hypotheses are guesses;
Theories are proven, data supported FACTS.

Question 7

What was the first correct hypothesis in support of evolution?

Answer 7

Natural Selection

Question 8

Who proposed the hypothesis of natural selection, and when?

Answer 8

Charles Darwin, 1850s

Question 9

What is the Theory of Natural Selection?

Answer 9

Some individuals in a population have hereditary advantages over others which enables them to produce a large set of offspring with those advantageous traits. As time progresses, the genetic composition of a population will change - the weak will be weeded out, the strong will survive & pass down stronger genes.

Question 10

What is a Scientific Law?

Answer 10

A generalization about predictable ways that energy or matter behaves. Some theories will be elevated to law.