The sides of the dna molecule, the rails of the ladder, are composed of

a) phosphates only

b) nitrogenous bases only

c) phosphates & sugars

d) nitrogenous bases & sugars

Which phrases describe an extrusive rock? check all that apply. fine texture cooled slowly small crystal size found deep underground different, easily observed minerals

Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?