The correct answer is the sarcoma. 
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Sarcoma is a type of cancer that arises from transformed cells of mesenchymal origin. It is the cancer of connective or other non-epithelial tissue. Sarcoma is very rare, it affects people of all ages and includes cancers such as leiomyosarcoma, chondrosarcoma, and gastrointestinal stromal tumor (GIST), Ewing's sarcoma, osteosarcoma.</span>
        
                    
             
        
        
        
Answer:
B) Feedback inhibition 
Explanation:
Feedback inhibition is a situation in which the end product of a reaction controls the action of the enzyme that helped produce it. In this process the end products formed at the end of a sequence of reactions participate in inhibiting the activity of the enzymes that helped synthesis the end product. Some examples of products that are used in feedback inhibition are CTP, citrate and Isoleucine. While negative feedback is used in the context of inhibition, negative feedback may also be used for promoting a certain process.
Therefore, when the end product of a pathway inhibits catalysis of the first step of that pathway, this phenomenon is called Feedback inhibition.
 
        
             
        
        
        
Answer:
Dehydration
Explanation:
Dehydration is the condition of the body which involves the loss of body fluid compared to the amount of water the body gets. Water is an important constituent of the human body making up to about two-third of the body. The normal body metabolism is affected when the amount of water in the body drops below the required level of water necessary for optimal functioning of the body.  
Athletes usually suffer from dehydration, most especially long distance runners, as they tend to lose a lot of body fluid through sweating while the body tries to regulate the body temperature during the race. When the body is dehydrated, the heart works harder to pump blood to various parts of the body leading to loss of strength of the muscles.  
Common signs a dehydrated person shows include feeling tired and lightheaded, loss of body weight etc.
 
        
             
        
        
        
Answer:
A central nervous system is consist of brain and spinal cord. The brain is made of the cerebrum, cerebellum, and brain stem.
The parts of the central nervous system involved in given behaviors are as follows:
- <u>Listening to music:</u> The cerebrum in the brain is responsible for the behaviour of listening music as it functions for auditory stimuli (temporal lobe).
- <u>Realization of being thirsty:</u> limbic system in brain is responsible for the regulation of thirst.
- <u>Feel that soda is no longer cold: </u>Hypothalamus in brain controls the sense of temperature felt by the body.
- <u>Decide to invite a friend over: </u>The cerebrum functions for thinking and decision making.