[] (a) Breathing rate
[] (b) Depth of water
[] (c) Mouth vs gill measurements
[] (d) Water temperature

Question 2: "As the temperature increases from 9 to 27 C, the gill movements will increase proportionately." The previous sentence is described best as :

[] (a) an assumption
[] (b) a double blind experiment
[] (c) an hypothesis
[] (d) a prediction to test an hypothesis
[] (e) a scientific law

Question 3: Goldfish are cold-blooded organisms.

[] True
[] False
[] Don't know

Question 4: To learn if a new drug called Thindown is effective in promoting weight loss scientists supplement the food of 27 male rats twice daily with 20 mg of Thindown. An appropriate control for this experiment is:

[] (a) 27 female rats also fed Thindown
[] (b) male rats not fed Thindown
[] (c) rats given 20 minutes of exercise twice daily
[] (d) 27 male rats fed Thindown once daily

Question 5: A goldfish opened and closed its mouth 20, 17, and 23 times in three consecutive 30-second observations. The average breathing rate (breaths per minute) was ______ .

[] 20 breaths per minute
[] 40 breaths per minute
[] 60 breaths per minute
[] 80 breaths per minute
[] None of the above

Question 6: Cold water contains more dissolved oxygen than warm water. True or false?

[] True
[] False

Question 7: In a scientific report the tables and graphs are included in the:

[] Introduction
[] Materials and Methods
[] Results
[] Discussion
[] Conclusions

Question 8: In a scientific report the hypothesis is stated in the :

[] Introduction
[] Materials and Methods
[] Results
[] Discussion
[] Conclusions

Question 9: If the observed results in an experiment are as predicted, the hypothesis is :

[] (a) confirmed
[] (b) correct
[] (c) disproved
[] (d) true

Question 10: Which of the following was not a control variable in the goldfish experiment?

[] (a) Depth of water
[] (b) Instrument used to measure temperature
[] (c) Kind of fish
[] (d) Number of opercular movements
[] (e) Size of battery jar

E-mail :