Option c. endodermis
greek word endon, within + derma,skin; the layer of living cells, with various characteristically thickened walls and no intercellular spaces, which surrounds the vascular tissue of certain plants and occurs nearly all roots and certain stem and leaves.
        
                    
             
        
        
        
Answer:
c. Recycling glass is an energy-saving practice.
Explanation:
I think because more energy is saved that way and makes it more effective than the rest of the choices.
 
        
                    
             
        
        
        
Answer: The correct option is B.
is a protein found in hair, among other things
Explanation:
Collagen is a structural protein found in different connective tissues of the body such as bones, cartilage, tendons, ligaments, skin e.t.c. it is the most abundant protein in mammals. It comprises of various amino acids that are join together to form triple helix of fibrils. Collagen is found in hair and other things because it is found in skin follicles that surrond the hair. The collagens that surrond the hair bulb increases the amount of hair and thicken it.
 
        
             
        
        
        
It took 1649 <span>took </span><span>for the world population to double, going from .25 billion people to .50 billion people.</span> years.