Briefly describe how you can tell when you are repaying the oxygen deficit

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

What form of anesthetic was used for field surgery

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.