Which of the following statements is true of any communication system?
A) Neurons are always involved.
B) The endocrine system is always involved.
C) A signal must always be sent and received.
D) Signals can be sent only in electrical form.
Answer: C
Anatomy & Physiology
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The bone tissue at E is ________ bone.
A) cancellous B) spongy C) compact D) articular E) fibrous bone
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