Question 18(Multiple Choice Worth 4 points) (01.03 MC)

It is hypothesized that RNA may have evolved before DNA because RNA molecules

A

were the first molecules synthesized by Miller and Urey

B

are more important to genetic inheritance than DNA

C

can catalyze a variety of biologically important reactions

D

are found in more modern cells than are DNA molecules

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy