Question

what are white blood cells?
cells that produce infections and diseases.
cells that only attack healthy cells in the body.
cells that are only present in the brain.
cells that are only found in the lungs.
cells that protect the body from infections and diseases.

Explanation:

White blood cells, also known as leukocytes, are an important part of the immune system. Their main function is to protect the body from infections and diseases by identifying and destroying pathogens such as bacteria, viruses, and fungi.

• The first option is incorrect because white blood cells do not produce infections and diseases.
• The second option is incorrect because white blood cells do not attack healthy cells in the body.
• The third option is incorrect because white blood cells are not only present in the brain.
• The fourth option is incorrect because white blood cells are not only found in the lungs.
• The fifth option is correct because it accurately describes the function of white blood cells.

Answer:

Cells that protect the body from infections and diseases.