2. DNA
a. is made up of amino acids.
C.
cannot be repaired if it is mutated.
b.
has a structure like a twisted ladder.
d. All of the above

They said i have got a sign of tuberculosis what should i do

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.

In the first stage of the nuclear fuel cycle the spent fuel must be transported, processed, and disposed of properly. true or false