It is the abdominal cavity that contains the digestive organs.
        
             
        
        
        
Answer:
Blood vessel, a vessel in the human or animal body in which blood circulates. The vessels that carry blood away from the heart are called arteries, and their very small branches are arterioles. Very small branches that collect the blood from the various organs and parts are called venules, and they unite to form veins, which return the blood to the heart. Capillaries are minute thin-walled vessels that connect the arterioles and venules; it is through the capillaries that nutrients and wastes are exchanged between the blood and body tissues.
Explanation:
 
        
                    
             
        
        
        
Answer:
The endomembrane system includes the nuclear envelope.
Explanation:
The endomembrane is composed by the endoplasmic reticulum (ER) and the golgi apparatus. Its main function is to synthesize proteins (rough endoplasmic reticulum studded with ribosomes) proteins can also be modified in the ER of pass to the golgi apparatus where they can be modified and sort to be packed in vesicles to be exported to different parts of the body, for example hormones. 
the nuclear envelope only holds the DNA and it´s not involved in protein synthesis. 
 
        
             
        
        
        
Should be prophase because chromatin coils up, becoming shorter and thicker, thick enough to become visible when stained.
        
             
        
        
        
Blood enters the pulmonary vein with close to 100% of the blinding site for oxygen saturated.