The backbone of DNA and RNA is composed of . DNA is double stranded due to interactions between
adenine, cytosine, guanine, and thymine, which are
• . Uracil is a

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers