The part of the curve in shaded area a has a steeper slope than the part of the curve in area b. true each shaded area on the x axis represents a 5 mm hg range in partial pressure of oxygen. true each shaded area on the y axis represents a 10% range in o2 saturation of hemoglobin. false if the partial pressure of oxygen in the blood dropped from 25 to 20 mm hg, the percent o2 saturation of hemoglobin would decrease to about 25%.

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."