Answer: Phagocytosis
Explanation:
White blood cells are the very important part of the immune system which has the ability to kill the harmful substances that reach the body.
They patrol like police inside the circulatory system and wipe out the pathogens like bacteria and virus by the process known as phagocytosis. They engulf these harmful particles and in this way it kills the cells.
hence, the correct answer is option B
A new species can develop in just a few generations
I am thinking D. But I am not sure that it is the answer.
Mitosis-<span>the </span>division<span> of the mother cell into two daughter cells genetically identical to each other.</span>
