The magnetic field of a bar magnet is the strongest at either pole of the magnet. It is equally strong at the North Pole when compared with the south pole. So I would say the answer is A.
Reflex action in the diagram would be the response. Diagram extracted from online.
C. The temperature remains the same.
Answer: The answer for the first one is
1: Eukaryotic
2: mitochondria
3: carbon dioxide, water, atp
4: glucose, oxygen
5: Glucose.
B. The U.S stock market crash and Franklin D Roosevelt’s policies