Chapter 1
Review
General terms
 Biology
 Biosphere
 Biodiversity (where is biodiversity the greatest on
earth? Why?)
 Organism
 Species (what makes a group of organisms a species?)
 Cell
 Metabolism
 What are the 5 characteristics of life?
 Hint:
 Red
 Roosters
 Drive
 Everyone
 Crazy
 Real cats eat dead rats?
Characteristics of Life
 Red- Reproduction
 Roosters- Response to environment
 Drive- Development
 Everyone- Energy
 Crazy- Cells
Unifying Themes
 What are the 4 unifying themes of biology?
 Hint:
 Even
 Sue and Fred
 Study
 Hard
Unifying Themes
 Even- Evolution explains unity and diversity
 Sue and Fred- Structure and function are related
 Study- Systems of related parts
 Hard- all organisms must maintain Homeostasis
More Terms
 System
 Homeostasis
 Evolution
 Adaptation
 Ecosystem
Chapter 1 Review Questions
1. What term describes proposed answer to a scientific
question?
(A) observation (B) independent variable (C)
dependent variable (D) hypothesis
2. What condition in an experiment does a biologist
manipulate?
(A) independent variable (B) dependent variable
(C) control (D) constant
3. Provide an example that displays the importance of
and the difference between constants and controls.
Answers
1. What term describes proposed answer to a scientific question?
(A) observation (B) independent variable (C) dependent variable (D) hypothesis
2. What condition in an experiment does a biologist manipulate?
(A) independent variable (B) dependent variable (C) control (D) constant
3. Provide an example that displays the importance of and the difference between constants and
controls.
Answers vary. Constants- conditions that do not change. Control- treated like the
experimental group except for the independent variable being studied. Used for comparison.
Review questions Continued
4. What is the sequence of scientific inquiry?
5. Which is an example of qualitative data?
(A) There were twelve colonies left after exposure to
antibiotics
(B) The chemical reaction produced a product that smelled
like vanilla.
(C) The mass of the product formed was 147.2 grams.
(D) The volume of the liquid was102 mL.
Answers cont.
4.Which is the correct sequence of scientific inquiry?
Don’t fixate so much on the number of steps. Understand the process
involves observing, hypothesizing, experimenting, analyzing, and
evaluating/concluding
5. Which is an example of qualitative data?
(A) There were twelve colonies left after exposure to antibiotics
(B) The chemical reaction produced a product that smelled like
vanilla.
(C) The mass of the product formed was 147.2 grams.
(D) The volume of the liquid was102 mL.
Independent vs Dependent
Variables
 You want to measure the effect of different amounts
of sugar on the amount of carbon dioxide released by
yeast. What is the independent variable?

A florist wants to see if Product X will extend the life
of cut flowers so that they last longer. What is the
independent variable?
 You want to test a new drug that supposedly prevents
sneezing in people allergic to grass. What is the
independent variable?
Answers
 You want to measure the effect of different amounts of
sugar on the amount of carbon dioxide released by yeast.
What is the independent variable?


amount of sugar or amount of carbon dioxide
A florist wants to see if Product X will extend the life of
cut flowers so that they last longer. What is the independent
variable?

the life of the flowers or Product X
 You want to test a new drug that supposedly prevents
sneezing in people allergic to grass. What is the
independent variable?

Sneezing or drug
Which are observations,
which are inferences?
 The table tops in this classroom are black.
 The sky is darkening because a storm is approaching
 Mr. Kicklighter coughed so he is sick
 There are four bullets on this slide
More terms
 Gene
 Genomics
 Biotechnology
 Microscope
 *don’t forget to review lab tools and lab safety!