Why did other parts of the Megalodon never turn into fossils?

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?

What are two examples of conduction that we use everyday

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures