Question

1. the diagram below represents an event that occurs in the blood. which statement describes this event?

(1) cell a is a white blood cell releasing antigens to destroy bacteria.
(2) cell a is a cancer cell produced by the immune system and it is helping to prevent disease.
(3) cell a is a white blood cell engulfing disease - causing organisms.
(4) cell a is protecting bacteria so they can reproduce without being destroyed by the predators.

Explanation:

The diagram shows a white blood cell (Cell A) engulfing a pathogen. This is a key function of white blood cells in the immune system. Option (3) correctly describes this process as a white blood cell (Cell A) engulfing disease - causing organisms.

Answer:

(3) Cell A is a white blood cell engulfing disease - causing organisms.