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If genes play an important role in influencing a specific trait, siblings should be more alike in terms of this trait than will be
Neurotransmitters
Chemical substances that transmit signals across a synapse from one neuron to another in the nervous system.
Sciatic Nerve
The largest nerve in the human body, running from the lower back down through the buttock and into the lower limb, responsible for sensation and movement in the leg.
Phagocytes
Cells within the body capable of engulfing and absorbing bacteria and other small cells and particles.
Meninges
Three protective membranes that surround the brain and spinal cord.
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