The most likely (and most accepted) explanation for the extinction of neandertals is:
A. Interbreeding with modern humans
B. Open conflict with modern humans
C. Inability to adapt to changing environment
D. Inefficient tool culture
E. Inefficient social system
Answer: C. Inability to adapt to changing environment
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Most gradient analyses support the individualistic view of communities proposed by ______
a. Clements b. Gleason c. Darwin d. Whitaker e. Connell
Use of succinylcholine as an anaesthetic is very dangerous for people with a genotype for the fastacting
form of the enzyme serum cholinesterase Indicate whether the statement is true or false.
It has been difficult to generate drugs to treat AIDS for which reason?
A. HIV does not cause AIDS. B. HIV does not use any enzymes that can be targeted by drugs. C. HIV mutates rapidly. D. The only way to kill a virus is with a vaccine, not with drugs. E. People with HIV infections die rapidly, before the drugs have a chance to cure them.
In the annual cycle of a temperate lake, thermal stratification occurs when?
A. during the summer B. during fall overturn C. during summer and winter D. during spring overturn