I believe the answer is Electrical message /chemical message. Neurones are nerve cells that carry information as tiny electrical signals. They are three types of neurones; Sensory neurones that carry signals from the receptors to the central nervous system, Motor neurone that carry information from the CNS to the effector cells and the relay neurones that carry information from one part of the CNS to another.
up to 1/2. Between one-third and one-half of all fertilized eggs never fully implant. A pregnancy is considered to be established only after implantation is complete.
