What is the chemical composition of chromatin?

a. it is pure dna.
b. it is dna and protein.
c. it is pure carbohydrates.
d. it is carbohydrates and dna.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Which of the following is not true about the atomic model of substances?

What type of context clue you understand the meaning of  quandary?