BIOL 100 EXAM 1 UPDATED ACTUAL
Exam Questions and CORRECT Answers
Characteristics of living organisms - CORRECT ANSWER - 1. Organized from the atom
to the biosphere
2. Use materials and energy from the environment
3. Reproduce offspring
4. Growth and development
5. Homeostasis
6. Respond to internal and external stimuli
7. Evolutionary history though which organisms change over time
Scientific Method - CORRECT ANSWER - Observation, Hypothesis, Experiment, Data
Collection, Conclusion, and Retest (if needed)
Groups - CORRECT ANSWER - Test groups
- a group of subjects that are exposed to the experimental variable
Control group
- a group for comparison that is not exposed to the experimental variable
Variables - CORRECT ANSWER - Experimental Variables
- the variable that is purposely changed or manipulated
, Responding Variable
- changes in response to the manipulated variable
Controlled Variable
- remains unchanged
Science vs. Pseudoscience - CORRECT ANSWER - - Science = open to criticism
- Pseudoscience = hostile to criticism
- Science = make tentative claims (must be conservative)
- Pseudoscience = strong general claims (we KNOW)
Molecules - CORRECT ANSWER - Atoms that are bonded together
-same atom or different atoms
- ex. O2, H2O
Componds - CORRECT ANSWER - molecules made of different atoms
- ex. H2O not O2
Bonds for joining Atoms - CORRECT ANSWER - ionic, covalent, and hydrogen
Ionic - CORRECT ANSWER - attraction between a positive and negative ion
- donate/take atoms to fill valence shell
Covalent Bonds - CORRECT ANSWER - Atoms share electrons to fill their valance shells
hydrogen bonds - CORRECT ANSWER - occurs between a slightly positive hydrogen and
a slightly negative oxygen or nitrogen
Exam Questions and CORRECT Answers
Characteristics of living organisms - CORRECT ANSWER - 1. Organized from the atom
to the biosphere
2. Use materials and energy from the environment
3. Reproduce offspring
4. Growth and development
5. Homeostasis
6. Respond to internal and external stimuli
7. Evolutionary history though which organisms change over time
Scientific Method - CORRECT ANSWER - Observation, Hypothesis, Experiment, Data
Collection, Conclusion, and Retest (if needed)
Groups - CORRECT ANSWER - Test groups
- a group of subjects that are exposed to the experimental variable
Control group
- a group for comparison that is not exposed to the experimental variable
Variables - CORRECT ANSWER - Experimental Variables
- the variable that is purposely changed or manipulated
, Responding Variable
- changes in response to the manipulated variable
Controlled Variable
- remains unchanged
Science vs. Pseudoscience - CORRECT ANSWER - - Science = open to criticism
- Pseudoscience = hostile to criticism
- Science = make tentative claims (must be conservative)
- Pseudoscience = strong general claims (we KNOW)
Molecules - CORRECT ANSWER - Atoms that are bonded together
-same atom or different atoms
- ex. O2, H2O
Componds - CORRECT ANSWER - molecules made of different atoms
- ex. H2O not O2
Bonds for joining Atoms - CORRECT ANSWER - ionic, covalent, and hydrogen
Ionic - CORRECT ANSWER - attraction between a positive and negative ion
- donate/take atoms to fill valence shell
Covalent Bonds - CORRECT ANSWER - Atoms share electrons to fill their valance shells
hydrogen bonds - CORRECT ANSWER - occurs between a slightly positive hydrogen and
a slightly negative oxygen or nitrogen
