Where do the light-dependent reactions take place? a. within the thylakoid membranes
b. within the mitochondria membranes
c. in the outer membrane of the chloroplasts
d. in the stroma of the chloroplast

A, the thylakoid membranes

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

c. heat from the poles back down towards the equator.