During a CE class, the instructor is speaking about the normal interrelatedness of the sympathetic and parasympathetic nervous systems and how they affect the heart rate. The instructor is discussing an aspect of the body's: chp 7 posttest

What are two reasons for why a species might disappear from the fossil record?

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

List charasteristics of athenosphere