Vertebrate

A)the rear; toward the rear
B)sameness, balance, or harmony as a result of a repeated pattern
C)having a repeating pattern which stretches outward from the center
D)having to do with the front side (or bottom)
E)an animal having a backbone

E) an animal having a backbone

Invertebrate

A)an animal having a backbone
B)an animal having no backbone
C)having a repeating pattern which stretches outward from the center
D)sameness, balance, or harmony as a result of a repeated pattern
E)the rear; toward the rear

B) an animal having no backbone

The correct answer is E) an animal having a backbone.

To arrive at this answer, we can use the process of elimination. Let's go through each option and analyze them one by one:

A) "the rear; toward the rear" - This definition does not relate to the term "vertebrate" and seems to describe a different concept altogether.

B) "sameness, balance, or harmony as a result of a repeated pattern" - While this definition contains some valid concepts, it doesn't accurately describe the term "vertebrate."

C) "having a repeating pattern which stretches outward from the center" - This definition doesn't align with the concept of "vertebrate" either. It seems to describe a different geometric or visual pattern.

D) "having to do with the front side (or bottom)" - This definition doesn't relate to "vertebrate" either. It seems to describe a different anatomical or directional concept.

E) "an animal having a backbone" - This definition perfectly matches the term "vertebrate." Vertebrates are a group of animals that possess a backbone or spinal column.

By process of elimination, we can determine that the correct answer is E) an animal having a backbone.