Why is the study of soil structure important?

a. relates to the chemical properties of soil
b. tell you how many nutrients are in the soil
c. is related to how well water and nutrients move through the soil

i would be so grateful if some one could me !

Which element is found in both dna and proteins

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

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur