I have only heard a few phrases for spine
Backbone
Vertebrae (vertebral column)
Spinal column
The correct answer is option glucose.
The glucose can be used as the immediate source of the energy. The cells can utilize the glucose to form the ATP molecules, which can be used as a source of energy by the body of the organism. The cellulose, chitin, and the glycogen are the polymers, they can only be utilized, once they are broken down into simpler forms.
Humans are least likely to survive.
