When an axon is at rest, all of the following are true EXCEPT:
a. There are more K+ ions inside the cell.
b. The membrane potential is approximately -70 mV.
c. There is no electrical charge associated with the cell.
d. There is a more negative charge inside the cell.
C
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If the groups we recognize as different human races represented genetically isolated populations, we would expect to see (select all that apply):
A. more genetic variation between groups than we see within groups. B. more genetic variation within groups than we see between groups. C. no clear pattern of genetic variationin some regions, we would see more variation within than among groups, and in some regions we would see the opposite. D. a correlation between the amount of genetic variation between groups and the length of time the groups have been isolated from one another. E. None of the above.
If you examined a cross section of a woody stem under the microscope and located the vascular cambium, the tissues on the inside of the vascular cambium ring (towards the center of the stem) would be
A. xylem (primary and secondary). B. xylem (only primary). C. phloem (primary and secondary). D. phloem (only secondary). E. phelloderm. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about the different tissues in a woody stem? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach 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?
Most of the Earth’s phosphorous is in the form of ____
a. phosphoric acid b. elemental phosphorous c. phosphate d. phosphorous cations e. carbonate
Which event occurs on the cristae of the mitochondria?
What will be an ideal response?