What describes each hydrogen bond? A
An attraction between positive ends of two molecules
B
An attraction between the positive end of one molecule and the neg
С
An attraction between neutral ends of two molecules
D
An attraction between negative ends of two molecules

answer; i believe that the correct answer is (lung);

your answer is "the 1950's"

the dark variety, as they are not visible on the dark tree barks

explanation:

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up