Explain the difference between how light falls on the Earth near the Equator or the Poles

What feature of cell theory is best demonstrated in the image

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

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