Only experimental design B is appropriate for answering the question posed by the instructor.
Biology Section_________ Name________________________________________
Dr.
Wexler
Quiz: Ch.1-1 What is Science?
Date:
1. (1 pt) Science is the study of ____________________________.
2. (2 pts) Two examples of disciplines within the life sciences are:
A.
B.
3. (1 pt) Biology is the study of ____________________________.
4. Pretend that you are a scientist. You read a paper in the journal Nature Genetics describing a series of experiments showing that some hereditary diseases are not due to gene mutation but rather to stable chemical modifications of DNA.
A. (1
pt) Regardless of whether or not you understand the subject, do you automatically
accept this fact?
B. (2 pts) Why or why not?
5. (1
pt) The data in the data table below is an example of
A. quantitative data
B. qualitative data
6. (1
pt) How do you know?
|
Daylight hours |
Other variable |
Average seed mass (in mg) of plants raised at: |
|
|
|
|
23ºC |
29ºC |
|
14 |
— |
7.10 |
5.63 |
|
14 |
Leaves removed |
7.15 |
6.11 |
|
14 |
Reduced water |
4.81 |
5.81 |
|
8 |
— |
6.12 |
— |
7. (1 pt) Which one of the following is an example of a qualitative observation?
A.
A piece of wood is 5.3 cm long
B. Solution 1 is much darker than
solution 2
C. The volume of liquid in beaker A is 4.3 mL
D. The
temperature of the liquid is 60*C
E. None of these
8.
Only experimental design B is appropriate
for answering the question posed by the instructor.
A. (2 pts) Explain why Design C will not provide useful information.
B. (2 pts) Explain why Design D will not provide useful information.
9. (2 pts) You are studying the effects of quagga mussels on Lake Michigan yellow perch populations. Quagga mussels are an invasive species of shellfish indigenous to the Dnieper River in the Ukraine and inadvertently imported to the Great Lakes by merchant shipping.
You observe in your studies that as quagga mussels proliferate the number of yellow perch diminish. The mussels are filter-feeders, feeding on microscopic phytoplankton.
Propose a simple hypothesis to explain why the yellow perch population decreased at the same time the quagga mussel population increased. (Note: there are a variety of hypotheses that may be proposed - be creative.
10. (2 pts) You read an article in which a cosmologist used mathematical arguments to indicate that there may be billions of universes other than the one we live in.
Is this a satisfactory hypothesis on the nature of existence?
Why or why not?
11. (2 pts) You are conducting an experiment to test the hypothesis that dairy cows will give more milk if they listen to classical music. Your twenty experimental cows listen to classical music; you collect the milk from each cow and measure its volume. Your control group of twenty cows experience identical conditions as the experimental group except:
A.
they listen to classical music at a louder volume
B. they listen
to classical music only during milking
C. they listen to heavy
metal music instead of classical
D. they do not listen to any
music
12. (2 pts) Lekeisha thinks that giving her tomato plants more water each day might make the plants grow faster. To test her hypothesis, she doubles the daily amount of water she gives her ten tomato plants and records their heights each day. What mistake did Lekeisha make in her experimental procedure?
She should have tripled the amount of water.
Explain your answer choice: