Pls help Harry Hess found evidence of Earth's magnetic reversal in the pattern of rocks on the ocean floor. Which layer of the Earth is responsible for Earth's magnetic reversal?

a) Crust
b) Mantle
c) Core
d) Lithosphere

Differentiation of cells changes the nucleic information. true false

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant