SCI 135 - First Exam Fall 2019

MULTIPLE CHOICE.

On the line to the left, place the letter of the choice that best answers the question.
Three Points Each. NOTE: "e" answers are never the correct answer.


        1. In an ecosystem, what happens to the energy of sunlight?

________ a. It just supplies heat to keep water liquid
                b. Once in the system, it recycles again and again
                c. It gets lost as it works its way up the food chain
                d. It gets used, but only by plants
                e. It, um, makes daytime, right-?


        2. In testing a new pain reliever, you have subjects assign numbers to the strength
                            of their pain, so that

________ a. Qualitative data is made quantitative           b. Quantitative data is made qualitative
                c. The variable is valid                                  d. There’s a proper control
                                e. Your assistants can work on their fingers and toes


        3. In modern classification systems, close relationships between groups imply that they have

________ a. The same roles in an ecosystem                       b. Basic physical similarities
                c. Evolved from common ancestors recently        d. All the same cells
                                e. Probably gotten really sick of each other


        4. Sharks, dolphins, and ichthyosaurs look very similar because of

________ a. Convergent evolution         b. Divergent evolution        c. Linkage
                d. Sexual selection                         e. Lack of imagination


        5. When experimental results disagree with the original hypothesis, this goes under
                        what heading, according to classic Scientific Method?

________ a. Confounding factors         b. Nonevidence         c. Control        d. Null hypothesis
                                                            e. Things to ignore



        6. Which is an example of spontaneous generation?

_______    a. Baby snakes hatching from eggs           b. Amebas dividing
                c. A scar forming where a wound was       d. Snails forming from rocks on a stream bottom
                                     e. Politicians changing positions


        7. A classic control test must duplicate the experimental test except for

_______    a. How data is collected         b. The results         c. The basic procedure
                d. The variable        e. You have to use different background music


        8. All of the energy-using chemical reactions in a living system are combined in

_______    a. Its overall weight         b. Its respiration         c. Its metabolism
                d. Its waste production e. Some pipes somewhere


        9. Which best describes peer review?

_______   a. You check other scientists' work while designing an experiment
                b. You have co-workers in the lab check your results as you record them
                c. Each step in designing your experiment is checked by your supervisor
                d. You write up your results and have other scientists check them
                e. I guess a peer isn’t somebody who wets the bed, then...


        10. Postmodernism addresses which confounding factor?

_______    a. Bias         b. Logic         c. Chance         d. Lack of controls         e. Building cool fences


        11. A treatment which is like a real treatment but actually treats nothing:

_______    a. Sham         b. Mimic         c. Copy control         d. Placebo        e. A pretty rotten joke


        12. According to classic scientific method, what is the most important factor about a hypothesis?

_______    a. It should be testable                 b. It should be consistent with known theories
                c. Everyone must accept it            d. It should be well-presented
                            e. Whether it will lead to the big bucks

 
SHORT ANSWER.

Answer any eight of the following questions for 4 Points Each.
Note: if you answer more than eight, only the first eight will be corrected.
You can get partial credit on these answers.

LONG ANSWER.

Answer any four of the following questions for Eight Points Each.
Note: if you answer more than four, only the first four will be corrected.
You can get partial credit on these answers.