How is the information within our DNA structured?
A.
as an arrangement of four chemical elements
B.
as an arrangement of four chemical bonds
C.
as an arrangement of four chemical reactions
D.
as an arrangement of four chemical bases

The body is protected against harmful flu viruses by

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants,the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

Organisms are classified, or grouped into categories, based on similarities in their characteristics and/or evolutionary relationships. the study of how organisms are classified is known as