The answer is d both a and b
There were more but they weren't discovered as they were not viral and treatment was unknown and research were not done.
Answer:
In the latter part of the preoperational period, the child begins to have an understanding between reality and fantasy. During this stage, children begin to reason logically, and organize thoughts coherently. However, they can only think about actual physical objects, and cannot handle abstract reasoning.
Explanation:
Pepsin is an enzyme that is primarily involved in the digestion of the proteins in the steak.
Answer: perpendicular plate of the ethmoid
Explanation: The perpendicular plate of the ethmoid bone is a thin, flattened lamina, polygonal in form, which descends from the under surface of the cribriform plate, and assists in forming the septum of the nose, it is generally deflected a little to one or other side.
