In dna, the base adenine binds with 1. thymine. 2. cytosine. 3. guanine. 4. codine.

In what for do plants utilize nitrogen? why do they need nitrogen?

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?