12C, 13C, and 14C are all isotopes of carbon. They differ in their

a. overall charges.
b. number of electrons.
c. number of protons.
d. number of neutrons.
e. electron energy shells.


D

Biology & Microbiology

You might also like to view...

What percentage of the human genome actually codes for proteins?

A. 1.0% B. 2.5% C. 45.0% D. 97.5% E. 99.0%

Biology & Microbiology

A polymorphism is defined as all the changes we would see in 50 randomly chosen

A. true B. false

Biology & Microbiology

A marine reptile found only on the Galapagos Islands is:

a. the sea snake. b. the marine crocodile. c. the marine iguana. d. the flatback sea turtle. e. the Galapagos skink.

Biology & Microbiology

The urethra ________.

A. is a structure where semen is stored B. adds fluids to semen C. is where sperms are produced D. is a tube that conveys both urine and semen

Biology & Microbiology