Ch 1 Nature of Science

Question 1

describe how life is diverse yet unified

Answer 1

All living things have DNA as gene/c material and have the exact same fundamental cell structure, but have diversity of form, color, shape, func/on, etc.

Question 2

Describe the scope of biology

Answer 2

The study of life.

Question 3

What is the scientific method?

Answer 3

Hypothesis based science, induc/ve reasoning which uses models to test theories.

Question 4

What are the steps of the scientific method?

Answer 4

a. Observation b. Question

c. Hypothesis d. Prediction e. Test

Question 5

What is a hypothesis?

Answer 5

An explanation that answers the original ques/on or accounts for an observation. a. A hypothesis is testable and falsifiable

Question 6

independent variable

Answer 6

factor being manipulated by the researchers

Question 7

dependent variable

Answer 7

the factor being measured that is is predicted to be affected by the independent variable

Question 8

standardized variable

Answer 8

anything not manipulated by the scientists that can affect dependent variable

Question 9

treatments

Answer 9

How the independent variables are manipulated or changed

Question 10

Predictions

Answer 10

What you will happen when you test your hypothesis if it is supported, and if it is not supported (if, then)

Question 11

experimental treatments

Answer 11

testing where variables are manipulated or changed

Question 12

control treatments

Answer 12

negative control: no independent variable