The bystander effect refers to the fact that
a. if one bystander helps in an emergency, many others will help, too
b. if one bystander stares up into the sky and points, a passerby will do the same,
even if there is nothing to look at
c. people are less likely to help in an emergency when there are more bystanders
d. even people who are trained in emergency rescue techniques find it difficult to
help in a real emergency situation
Question 2
Studies of the effect of city size on helping have been conducted across the United States and in several countries around the world. They have found that
a. there is no association between city size and helping in any of the locations studied
b. there is an association between city size and helping, but only within the United States
c. there is an association between city size and helping, but only outside the United States
d. there is an association between city size and helping in every location studied
A hypothetical example of the bottleneck effect.
Effect of substrate concentration on the initial velocity of an enzyme-catalyzed reaction
A horizontally opposed engine design helps to lower the vehicle’s center of gravity.
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Greenhouse Effect
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