What is the main energy source used by the cells?
a. Starch
b. Glucose
c. Amino acids
d. Fatty acids
e. Glycogen
b
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Why might unrelated individuals engage in altruistic acts?
A. If they are trying to mate with each other. B. If it is possible they may mate with each other. C. If the altruism is likely to be reciprocated. D. The individuals are part of the same large flock. E. None of these choices are correct.
Which of the following organisms would NOT be classified in the Domain Eukarya?
A. Canis lupis (wolf). B. Loxodonta cyclotis (forest elephant). C. Salmonella enterica (bacteria that causes food poisoning). D. Aleuria aurantia (ascomycete fungi). E. Sequoiadendron giganteum (Giant Sequoia tree).
In mammals, urine drains out of the ____ into a collecting duct
a. distal convoluted tubule b. Bowman's capsule c. descending segment of the loop of Henle d. proximal convoluted tubule e. ascending segment of the loop of Henle
What initiates the formation of an endospore?
A) stimulus to reproduce B) transfer of genetic material C) injury to the cell D) depletion of nutrients