To identify the optimal phylogenetic tree from multiple potential trees, many systematists use the ____, which states
that the simplest plausible explanation of any phenomenon is the best.
a. maximum likelihood method
b. principle of parsimony
c. genetic distance method
d. gradual phyletic hypothesis
e. punctuated equilibrium hypothesis
ANSWER: b
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Microbial ecology is the study of
A) microbial processes in the rhizosphere that benefit plant growth. B) the diversity and activities of microorganisms. C) the grouping and classifying of microorganisms. D) microorganisms in their natural environments.
The ____ are heterotrophic funguslike protists
a. Rhodophyta b. Chrysophyta
c. Phaeophyta d. Bacillariophyta e. Oomycota
You decide to perform an experiment to test this why plants possess TRP channel agonists. You first set up batches of plants in the field WITH or WITHOUT applied capsaicin or menthol. What parameter do you then measure?
A. photosynthetic rate B. amount of leaf or fruit damage C. metabolic rate D. palatability to humans Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about TRP channels? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In a dihybrid cross exhibiting complete genetic linkage, what would you expect?
A) one parental allele combination occurring more frequently than another B) two equally frequent gametes containing only parental allele combinations C) only recombinant gametes D) one parental allele combination occurring more frequently than another and no recombinant gametes E) two equally frequent gametes containing only parental allele combinations and no recombinant gametes