Answer:
The testes are oval organs about the size of very large olives that lie in the scrotum, secured at either end by a structure called the spermatic cord. Most men have two testes. The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm.
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Theory
Explanation:
A scientific theory means an idea which is true and tested.
 
        
             
        
        
        
Answer:
to carry heavy load on the vehicle's outside
Explanation:
Aerodyanmic properties of a car refer to its interactions with moving air and the properties which govern smooth movement of the car through air. Aerodynamics of a car address the concerns like lowering noise emission, prevention of heavy load and avoiding the luggage dragging.
Now when there will be great load outside the car,the air will resist the movement of car more, so it will be difficult for the car to cut through the air. Moreover, when a car carries huge amount of load outside its body, the frictional force by aerodynamic drag increases greatly. This can badly effect the performance of high speed cars like sports cars but for other normal cars it poses less hazards.
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Answer:
Mitochondria have their own cell membranes, just like a prokaryotic cell does. Each mitochondria has its own circular DNA genome. 
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<em>To get energy from stored glycogen (in the liver), the body must first convert the glycogen into </em><u><em>ATP.
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<em>(ATP stands for Adenosine Triphosphate . This is the energy currency of most cellular processes .)</em>
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