The inability of organisms to evolve anything that could be an advantage reflects _____
A) the limits of historical constraints
B) the inability to compromise
C) the consequences of random mutations
D) the consequences of inbreeding
Answer: A
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Koch's postulates are criteria used to establish that
A. microbes can be used to clean up toxic spills. B. microbes are found on dust particles. C. life forms can only arise from preexisting life forms. D. a specific microbe should be classified in a specific kingdom. E. a specific microbe is the cause of a specific disease.
Vitamin C ____
a. helps blood to clot b. is needed to make collagen c. is used to create coenzymes d. is fat soluble e. protects cell membranes
Which of the following factors should make females the "choosier" sex?
a. Eggs are expensive and rare compared to sperm. b. Females tend to invest more time and energy in gestation time and/or brood care. c. Female quality never plays a role in male mating decisions. d. Males and females show about the same variation in quality. e. A and B.
Viral genomes _________
(a) can be made of DNA. (b) can be made of RNA. (c) can be either double-stranded or single-stranded. (d) All answers above are true.