DNA structure can be described by which of the following: A. Contains the nitrogen base uracil
B. occurs in several different forms
C. double strand of nucleotides
D. single strand of nucleotides

Cells destroy body cells infected by a virus or bacteria.

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Which nucleotide component contains nitrogen