Phagocytes are the Leukocytes that respond to nonspecific foreign invaders. While Lymphocytes respond to specific invaders. These are components of the blood that are triggered by the immune system when invaders (e.g. bacteria, virus) enter the body. Without these components in the blood, the body will not be able to protect itself from numerous diseases. These are major defense mechanisms of the body.
Letter B is wrong I took the unit test on E-2020 the correct answer to the question is A.
Answer:
abacus
Explanation:
Focus On. There is a long history detailing the invention of computing and calculating machines. The earliest recorded calculating device is the abacus. Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago.
The correct answer is: such words are not part of the essential exposition of ideas
He forced a attack to retaliate on them
