How could you ethically design a scientific study to determine whether mercury-containing vaccines cause ASD?
What will be an ideal response?
The best option is to compare rates of ASDs in children receiving vaccines with mercury-containing substances to rates of ASDs in children who have not received such vaccines. They should mention that the two groups should be similar in other parameters, such as gender. Students may note that it is unethical to do experiments on humans where there is some danger of causing lasting harm. They may also be aware that, at present, there is no known similar condition in other animals.
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The photosynthetic production of one molecule of glucose requires ________ molecule(s) of NADPH.
A. 6 B. 24 C. 12 D. 18
Blood pressure is lowest when ventricles are _____; this is known as _____
a. fully relaxed; systolic pressure b. contracting; diastolic pressure c. contracting; systolic pressure d. fully relaxed; diastolic pressure e. in transition; systolic pressure
Reciprocal innveration means that the ____
a. antagonist muscle groups contract at the same time b. antagonist muscle groups relax at the same time c. antagonist muscle groups alternate contraction and relaxation d. synergistic muscle groups contract at the same time e. synergistic muscle groups relax at the same time
In which environment would you most likely find chytrids?
A) The back of the refrigerator B) A well-used gym bag C) A warm swamp D) A basket of overripe fruit