Which factor has little effect on the rate of transpiration?
a. air temperature
b. relative humidity
c. air movement
d. the amount of direct solar radiation
e. daily fluctuations in atmospheric carbon dioxide concentrations
ANSWER: e
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The union of research and medicine that seeks to quickly translate research findings into methods for the diagnosis and treatment of diseases is called ____________________
Fill in the blank(s) with correct word
An Ss × Ss mating is performed. If the phenotypic ratio of the progeny is 3 S– (– indicates that the other allele is unknown) to 1 ss, then
A) the S allele is dominant to the s allele. B) neither allele is dominant. C) the s allele is dominant to the S allele. D) the relationship between the alleles cannot be determined.
Which statement is true for scyphozoan medusae?
a. They are the dominant body form. b. They are generally smaller than hydrozoan medusae. c. Most live in freshwater. d. They are scavengers.
Which class of RNA is required for DNA transcription?
A) mRNA B) tRNA C) rRNA D) all of the choices