The organ which plays the primary role in prompting individuals to seek food is the brain. The brain is one of the most important organ of the nervous system. It is comparable to the CPU of a computer. It is repsonsible of processing information that it is receiving from all the senses and send the message back to the organs for a response.
MRNA it is the messenger, for it "feeds" information
Carbon sinks (the ocean is actually the largest carbon sink)
A molecule is a carbohydrate if it contains carbon and water