Answer: 
Plant produces food material in the process of photosynthesis in the leaves. The food that is produced in the form of glucose (sugar) is transported from the leaves to other parts of the plants such as roots, stem and seeds with the help of water. When the glucose reaches to the storage part it is stored in the form of starch. 
For example, in carrot and potato food is stored in roots while in sugar cane the food is stored in the stem. 
 
        
             
        
        
        
No they cant be mechanical because then something would have to generate their rays through the inventing of a machine.
        
             
        
        
        
Answer:
See the answer below
Explanation:
For each heterozygous parent with the genotype BbRr, the possible gametes are: BR, Br, bR, and br. A set of these gametes from one of the parents will be lined up along the top of the Punnet's square while another set from the other parent will be lined up along the side of the square.
The result is shown in the attached image.
 
        
             
        
        
        
A disaccharide (also called a double sugar or biose[1]) is the sugar formed when two monosaccharides (simple sugars) are joined. Like monosaccharides, disaccharides are soluble in water. Three common examples are sucrose, lactose,[2] and maltose.          
Disaccharides are formed by the condensation reactions of two simple sugar molecules.