Because boys lungs aren’t as big as a mans lungs I guess lol
        
             
        
        
        
Earthworms have two muscles which is used in locomotion. Both muscles are circular and longitudinal (inner layer of the series of muscles). The diameter of the earthworms body is reduced when the circular muscles are contracted which makes them appear to be thin. The worm appears short when the longitudinal muscles contract thus, its length is reduced.
 
Amphioxus on the other hand,  have two unique muscle fiber types. This includes  deep fibers and smaller but mitochondria-rich superficial fibers. E<span>ach of which has its own innervation.</span>
 
        
             
        
        
        
Hello,
The answer is option D "<span>natural science technician".
Reason:
A natural science technician studies in natural resources for example: water or ground water.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit</span>
        
                    
             
        
        
        
The answer is b. to maintain the functions of the reproductive organs
Vitamin C is a water soluble vitamin that has a role in connective tissue. It produce and maintain collagen and has a role in wound healing. It also increase the iron absorption which makes orange juice a good drink for a meal with meat. Vitamin C will also protect and recycle vitamin e.
 
        
             
        
        
        
Answer:
White
Immune
Explanation:
White blood cells, also called leukocytes, are one of the cells that are involved in the body's immune system. They protect the body against various infections diseases and other invaders. Leukocytes are produced in the bone marrow (hematopoietic stem cells). They are not the only cells that are important for the defense of the body but are important.