What keeps earth’s temperature at the proper level for life

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

Which would be the most useful source of evidence to support mcneill's contention?

Albinism is an inherited genetic disorder. explain what it is meant by inherited genetic disorder