In this model, what are the sides of the ladder are made of? A. Nitrogen bases
B. Oxygen and nitrogen
C. Amino acids
D. Sugar and phosphate parts

Which statements are true of an allegory? check all that apply. it is an extended metaphor. it has literal and symbolic meanings. it to communicate an abstract concept. it is an exact representation of actual events. it uses objects to represent a single characteristic. it has moral, social, religious, or political significance.