You want to know whether cookies made with unbleached flour taste better than cookies made with bleached flour; which of the following has the strongest experimental design to test this question?
A) Make two batches of cookies, both with bleached flour; one taster tries both types and ranks which type he likes best.
B) Make two batches of cookies, one with bleached flour and one with unbleached flour; one taster tries both types and ranks which type he likes best.
C) Make two batches of cookies, one with bleached flour and one with unbleached flour; twenty tasters try both types and rank which type they like best.
D) Make two batches of cookies, one with bleached flour and one with unbleached flour; twenty tasters try both types without knowing which ones they are eating and rank which type they like best.
D
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What is the maximum number of covalent bonds that may be shared between any two atoms?
a. one b. two c. four d. three
Chiasma plural = chiasmata. What phase in Meiosis does this occur?
What will be an ideal response?
A cow with black and white patches is produced from a white bull and a black cow. This is an example of
a. incomplete dominance. b. Codominance. c. dominance/recessive trait. d. Pleiotropy.
You are explaining the causes of smoker's cough to a client, including altered function of the cilia in the lining of large respiratory passages. Which of these is true
A. Toxins in cigarette smoke irritate nerves under the cilia, causing a cough. B. Smoking damages the cilia, rendering them unable to sweep mucus out of the respiratory passages, resulting in coughing. C. Smoking causes the cilia to produce more mucus, resulting in coughing. D. Cigarette smoke causes an overgrowth of cilia, leading to cough