How many carbon atoms does the common group of amino acids have? a. 0 c. 2 b. 1 d. 3

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

What is the maximum number of electrons that an atomic orbital can contain?

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a