Studies of oxygen transport in pregnant mammals show that the o2-saturation curves of fetal (hbf) and maternal (hba) hemoglobin are markedly different when measured under the same conditions. which hemoglobin has a higher affinity for o2 at the tissue po2 of around 4 kpa?

Ialready know the answers to these questions and they are on the attachment. but i just need to know why that answer is the correct one. plz asap! this is for a report that i need to email by 10!

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box