A carbon atom has an atomic number of 6 and an atomic mass of 12. Assuming it is neither an ion nor part of a molecule, how many electrons does it have?
a. four
b. five
c. six
d. eight
c. six
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ALL viral particles
A) are metabolically inert. B) are smaller than bacterial cells. C) contain an envelope to prevent its degradation outside of a host. D) exhibit cell lysis under a particular condition.
What is the primary difference in how touch sensation and hearing sensation are conveyed?
A. the neurotransmitters secreted by the sensory neurons B. the way that the axons physically connect to the brain stem C. the shape of the sensory axons D. the proteins that transduce the chemical signal in the brain E. the part of the brain that receives the signal 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 sensory signaling? 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?
Research has shown that commercial fisheries place selective pressure on fish populations by
harvesting mostly the ____ fish, resulting in ____.
a. young; aging populations b. larger; maturity at smaller sizes c. smaller; maturity at larger sizes d. prereproductive; declining birth rates e. postreproductive; no change in population size
If the difference in pH across a membrane is 0.60 and the membrane potential is -0.10 V, about what percent of the Gibbs free energy change, ?G, is from the pH difference at 37 oC? (R = 8.315 J K-1 mol-1; F = 96,485 J V-1 mol-1)
A) 15% B) 27% C) 73% D) 85%