Answer:
Mechanical digestion begins in the mouth as the food is chewed. Chemical digestion involves breaking down the food into simpler nutrients that can be used by the cells.
Explanation:
Chemical digestion begins in the mouth when food mixes with saliva. Saliva contains an enzyme (amylase) that begins the breakdown of carbohydrates.
Because it is polar and it is to large to cross the membrane and because the concentration gradients are to strong so they have to be diffused.
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This statement giving a clue that there is asexually reproduction (may be binary fission) taking place and the progenies in asexual reproduction are genetically similar to parent cell. So answer is A.
The main reason for creating hybrid plants is to yield more crops. This is primarily due to characteristics of hybrid plants which produces favorable traits such as resistance to certain diseases and increase in crop yields than their parent plants.
Answer- Option 1 - yield more crops
