The main function of the central nervous system is to
a. process information from stimuli and respond.
b. process information from responses and sense stimuli.
c. sense stimuli and cause reactions in the body.
d. sense reactions and cause stimuli in the body.

The correct answer is- A. process information from stimuli and respond.

The central nervous system ( also called command center of body) is one of the two major branches of nervous system. It contains brain and spinal cord. It is primarily responsible for intergrating the information that it received from the stimuli ( any external or internal change that produces reaction in the body) , processing it and producing appropriate response for it.

Thus, option A) is the right answer.

The main function of the central nervous system is to process information from stimuli and respond.

Further Explanation:

The central nervous system consists of spinal cord and brain. The spongy and soft mass of nerve cells makes up the brain. The brain stem, cerebellum, and cerebrum are three main parts of the brain. The connection between spinal cord and the brain is established by the brain stem.

A group of neurons together performing a specific function can be termed as a nerve tissue. A nerve tissue is typically present in the central as well as peripheral nervous system. The central nervous system comprises of the spinal cord and brain. The nerves which are arising from the brain are known as the cranial nerves and the ones which are arises from the spinal cord are known as the spinal nerves. These systems insure the proper functioning of the body. All the information is gathered and the reflex action is initiated and processed simultaneously. It is primarily accountable for integrating the information that it received from the stimuli (any external or internal change that produces reaction in the body), processing it and producing appropriate response for it.

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Answer Details:

Grade: High School

Subject: Health

Chapter: Central Nervous System

Keywords:

Central nervous tissue, body, reflex action, spinal cord, brain, soft mass, nerve tissue, brain stem, neurons, central, peripheral nervous tissue.

from almost the creation of the first true maps of the earth, people started seeing how continents would be able to fit together.   in particular, people noticed that south america fits almost exactly into africa.

you should be aware that while world maps were around early in the 1600’s and better defined by the end of the 1700’s, those maps were not ‘public’ but were treated as state secrets.   and so it was not till much later that the broader ‘science’ community had access to good quality and accurate world maps.

get the whole story here…

it is now known that most of the major continental masses can be fit together in a jigsaw process.   in fact we now know that the continents were indeed once all joined together as one land mass – the supercontinent of pangaea.

if you look at most world maps you will ponder how this is evidence, as the continents really don’t appear to ‘fit’ together very well.   what you need to understand is that the vast majority of maps are drawn using a map projection that has the north and south poles (which are points) are a line the width of the map at the top and bottom.   this means that the map distorts the true shape of the earth’s land and oceans as you love closer to the poles.     some other map projections distort less, but have the map shape looking like segments of an orange.   see here for a range of map projections.   check out the way greenland changes size in each!

what is more remarkable, is the next piece of evidence when added to the shape of continents.

location of mountains and fossils

what is remarkable, when you reassemble all the continents together, the ancient mountain ranges (many now eroded to their cores) and the location of rock types and fossils all match up.