Some scientists speculate that RNA exsisted prior to DNA
a. true
b. false
Answer: a. true
Biology & Microbiology
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Only ____ make direct contact with brain interneurons rather than afferent neurons
a. olfactory receptors b. taste receptors c. chemoreceptors d. mechanoreceptors e. photoreceptors
Biology & Microbiology
All populations of all species in a habitat are a(n) __________. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
Agents that can denature microbial proteins include all of the following except ________.
A. metallic ions B. acids C. alcohol D. moist heat E. X rays
Biology & Microbiology
Predict what would happen as the entropy of a system approaches 100%
A) All motion would stop. B) Randomness would become maximized. C) Order would become maximized. D) Heat would decrease.
Biology & Microbiology