Examine the digestive system structures in the figure above. The agents that help emulsify fats are produced in location _____
A) 1
B) 2
C) 3
D) 8
E) 9
Answer: E
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As N approaches K for a certain population, which of the following is predicted by the logistic equation?
A) The growth rate will not change. B) The growth rate will approach zero. C) The population will show an Allee effect. D) The population will increase exponentially. E) The carrying capacity of the environment will increase.
The domain Archaea was discovered in the mid-1970s. Despite the recent start to investigations of archaeal species, some general chromosome and genome characteristics are clear
Which of the following similarities have been found between archeae and bacteria? A) they have no nucleus B) they are haploid C) a high percentage of the genome encodes proteins D) many genes share promoters E) all of the above
Which of the following behaviors would be determined by genes?
A. Behavior changed as a result of habituation B. Behavior modified as a result of experience C. A conditioned response D. An instinctive behavior
Which cancer-causing agent inserts foreign DNA into cells making them cancerous?
a. parasites b. viruses c. mast cells d. radiation e. bacteria