Answer to Question 1
B
Explanation: A) The nucleus is in the center of the cell.
B) Correct.
C) The cytoplasm is the watery interior of the cell.
D) The Golgi apparatus is within the cell.
Answer to Question 2
C
Explanation: A) Blood is not a molecule, which is a chemical combination of two or more atoms that form a specific chemical compound.
B) Mucus is not a molecule, which is a chemical combination of two or more atoms that form a specific chemical compound.
C) Correct.
D) Oxygen is an element, not a molecule, which is a chemical combination of two or more atoms that form a specific chemical compound.