Answer:
D) In DNA, adenine, thymine, guanine, and cytosine join together and carry all of the genetic information. RNA is made from adenine, uracil, cytosine, and guanine and is used to make proteins.
Density can be useful in identifying substances. It is also a convenient property because it provides a link (or conversion factor) between the mass and the volume of a substance. Mass and volume are extensive (or extrinsic) properties of matter - they depend on amount.
<span>The significance of chitin in arthropods is Chitin is a structural carbohydrate that forms their exoskeleton. </span>
D. Plants break down the glucose they produced in photosynthesis, and animals get energy from eating other organisms.
