Answer:
D. pituitary gland
~+. lil more info .+~
The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.
 
        
             
        
        
        
The endocrine system is a collection of glands that regulate your metabolism, growth, sleep, mood and other things around your body.
        
                    
             
        
        
        
Ribosome- both
endo reticulum- both
golgi apparatus- both
cell wall- plant only
vacuoles- plant only 
lysosomes- animal only 
mitochondria- both
cell membrane- both 
cytoplasm- both
chloroplasts- plant only
        
             
        
        
        
food chain. it tells how different organism feed on in a linear way. if we mix more than 2 food chains it will become food web.
 
        
                    
             
        
        
        
Answer:
When the cell cycle is interrupted, apoptosis occurs. 
Explanation: 
Opoptosis is also known as programmed death of the abnormal cell. When cell DNA is damaged first it is repaired. If cell DNA cannot be repaired so the cell kill itself. If Opoptosis didn't occurs, then the cell divides with the damage DNA and transfer that damage DNA to the daughter cells which lead to cancer disease. Cancer also occurs when uncontrolled division of cells is done.