Bio Mod 1 The Nature of Science

Question 1

Organism

Answer 1

Living entity that contains one or more cells

Question 2

Five Fundamentals Characteristics of Organisms

Answer 2

1. Cells
2. Replication
3. Information
4. Energy
5. Evolution

Question 3

Cells

Answer 3

Basic structural and functional unit of all organisms

Question 4

Genes

Answer 4

Encodes genetic information

Question 5

Molecules

Answer 5

Substance made up of two or more atoms held together by covalent bonds

Question 6

Three Theories of Modern Biology

Answer 6

1. Cell theory
2. Chromosome Theory
3. Theory of Evolution

Question 7

Theory

Answer 7

Explanation for a broad class of observed phenomena that is supported by a wide body of evidence

Question 8

Cell Theory

Answer 8

All organisms are made of cells and all cells come from preexisting cells

Question 9

Hypothesis

Answer 9

Testable and falsifiable (can be proven wrong) statement that explains a phenomenon or a set of observations

Question 10

Two Hypotheses for Cells

Answer 10

1. Spontaneous generation (appear)

2. All cells from cells (grow and divide)

Question 11

Experiment

Answer 11

Test the effect of a factor on a particular phenomenon

Question 12

Prediction

Answer 12

Measurable or observable result of an experiment based on a particular hypothesis; provides support for the hypothesis

Question 13

Chemical Evolution

Answer 13

Simple chemical compounds in the early atmosphere and ocean combined via reactions to form larger, more complex substances, eventually leading to life

Question 14

Null hypothesis

Answer 14

Specifies what the results of an experiment will be if the main hypothesis being tested is wrong (often states that there will be no difference between experimental groups)

Question 15

Control

Answer 15

A group of samples that don’t receive the experimental treatment