Which of the following is responsible for sending messages to and from the brain?
Spinal cord
Backbone
sternum
Ear
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spinal cord is the correct answer
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The organ responsible for sending messages is - Spinal cord
Messages are sent to and fro from brain in the form of electrical impulses and neurotransmitters.
Backbone is also known as vertebral column. It is a part of skeletal system of body and helps in protection of spinal cord from external injuries.
Sternum is also a part of skeletal system and is found in chest. Ribs arise from this part.
Ear is auditory organ responsible for hearing and balancing of body. It is externally distinguished in some organisms by presence of ear pinna. Example humans have ear pinna while birds don't.
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