Describe the location of the visceral pericardium.

Correct Answer: C

Rationale: Visceral pericardium directly covers the heart's surface.

Correct Answer: D

Rationale: Prokaryotic cells lack a membrane-bound nucleus; their genetic material is in the nucleoid region.

Correct Answer: C

Rationale: Leukemia can cause a decrease in total white blood cell count.

Correct Answer: C

Rationale: The retina is the innermost layer of the eye.

Correct Answer: C

Rationale: Microfilaments occur inside the cell.