Which of the following statements about nervous system communication is not correct?
a. the nervous system uses electrical and chemical signals to communicate internally.
b. the nervous system uses neurons to communicate internally.
c. the nervous system uses glia cells to communicate internally.
d. the nervous system uses endocrine glands to communicate internally

Correct C) The nervous system uses glia cells to communicate internally.

Nervous system is a collection of nerve and specialized cells called as neurons, these neurons act as the building block of the the nervous system and it helps to transmit signal across the different parts of the body.

The neurons present in the nervous system transmit the signal from one neuron to another in the form of electrical signal. The place where signal transfer from neuron to another neuron take place is called as synapse.

Glial cellls do not help in conduction of electrical signal rather it surround neurons and provide support and insulation between neurons.

The answer is C the nervous system uses glia cells to communicate internally.

Let us go over the definitions and the functions of each term:
a) Gene is a bit vague but in general it means a part of DNA that encodes one protein. Genes are the building blocks of our genomes but not the answer to this question.
b)mRNA. This is correct. The name itself means messengerRNA and its role is to copy the genetic information in the nucleus and bring it outside to be translated into protein.
c) ATP is an important molecule in our metabolism; energy is stored in this molecule and then used. It has no relationship to the mechanisms concerning DNA.
d) Thymine is one of the 4 nucleotide bases that are found in DNA, the other three being guanine, cytosine and adenine. They are essential components of a nucleotide (building blocks of DNA and RNA) but again, they do not transfer information out of the nucleus.