BIO 101 Final Chapter 1

Question 1

Science is…

Answer 1

Self correcting -> actively seeks to disprove its own theories and hypothesis.

Question 2

Things that can’t be scientifically investigated are..

Answer 2

Superstitions
Astrology
Supernatural Forces

Question 3

Scientific Methods. A hypothesis need to be..

hypothesis definition: a proposed explanation for observed phenomena.

Answer 3

Needs to be testable (no ghosts)
Needs to be falsifiable-> alternative hypothesis are possible.
Needs to generate a testable prediction

Question 4

Step 3 of Scientific Methods. Make a prediction (future tense) If then format
Hypothesis are…

Answer 4

Highly probable if hypothesis is true.

highly improbable if hypothesis is not true.

Question 5

Experimental Design

What is the control group?

Answer 5

Control group: a group of subjects who are treated identically to the experimental group, with the exception that they are not exposed to the treatment.

The control group is compared to the experimental group to see if the 1 variable is causing a change.

Question 6

Evaluating scientific evidence.
Sampling error
inadeqate #’, small sample size
avoided by large sample sizes because:

Answer 6

decreases risk of sampling error
better representation of the subjects involved( whole pop.)
more likely to produce statistically significant results.

Question 7

Scientific Theory:

Answer 7

refers to a group of related, well-tested hypothesis with a great deal of supporting evidence from many researchers
unlikely to be altered by new evidence
much broader in scope than a hypothesis