Which of the following this true of a rock that has the property of paleomagnetism? a: rocks formed millions of years ago show the location of the magnetic poles at the time of their formation b: all rocks, regardless of when they are formed, will eventually possess the same polarity c: a major shift in polarity occurred in all rocks that were formed one million years ago d: a rock possesses a specific polarity depending on where it is formed

Awoman whose sister tested positive for a specific mutation in the brca1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site. how should this woman be counseled? select one: a. she should be informed that her risk for breast cancer is greater than the general population but not as great as her sister’s risk. b. she should be informed that because she does not have the mutation, her risk for breast cancer is not greater than that of the general population. c. she should be informed of her gene mutation status and be presented with all the available prophylaxis options and reconstruction options. d. she should be informed that she does not have the specific mutation but that because another mutation is present she should be vigilant about screening

Aplant may open end close its stomata to prevent excess water loss and maintain

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.