Which of these molecules is a disaccharide?
a. galactose
b. sucrose
c. cellulose
d. ribose

Suppose a scientist measures the amount of dna per cell of a particular diploid species at various stages of meiosis. she finds that the meiotic cells contain 3.7 pg , 7.3 pg , or 14.6 pg of dna. match each stage of the cell cycle to the corresponding amount of dna contained within a cell at that stage.

How do accessory pigments chlorophyll?

What is the most appropriate method of gaining weight (muscle mass)