Which functional group acts as an organic base?
a. carbonyl
b. hydroxyl
c. phosphate
d. amino
e. carboxyl
ANSWER: d
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Ancestors of whales are believed to have been artiodactyls, a group of terrestrial mammals including all of the following animals except ________
a. deer b. antelope c. pigs d. horses
What distribution pattern is the most common in the natural world?
a. random b. uniform c. clumped d. stratified or layered e. bimodal
The age structure diagram for rapidly growing populations:
a. is in the form of an hour glass, with large young and old populations b. is characterized by a large percentage of the population in the postreproductive years c. has a small base showing a reduced number of young d. has about equal distribution between all age groups e. is in the form of a pyramid and has a very broad base showing a large number of young
Which of the following eukaryotic organelles
are believed to have existed as independent prokaryotes in the past?
a. peroxisomes b. chloroplasts c. mitochondria d. lysosomes e. more than one of these