40 to test acidity levels of water, scientists test the ph. as acid rain falls, the ph levels in lakes and streams decrease. while certain animals can tolerate low ph levels, others are extremely sensitive to the effects of acid rain and cannot live under the conditions. students in maria's class know, based on the chart, the ph range tolerated by specific organisms living in the ponds surrounding their school maria and several other students are anxious to design an experiment to investigate this topic.

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Awire-hair terrier and a smooth-hair terrier are mated. the offspring produced are 6 wire-hair puppies and 2 smooth-hair puppies. a. what pattern of inheritance best describes this situation? b. what is the genotype(s) of the wire-haired puppies? of the smooth-haired puppies? c. what would be the expected genotype and phenotype ratios of a mating between 2 wire-haired terriers that are heterozygous?

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