举一反三
- White blood cells patrol the body searching for potential sources of infection and destroy invading pathogens, such as ________, ________, ________, and ________. A: viruses B: bacteria C: fungi D: parasitic microorganisms
- The term which means abnormal condition of white blood cells (slight increase in normal cells to fight infection) is ____.
- Which of the following is NOT function of white blood cells ____. A: Guard against infection B: Fight parasites C: Attack bacteria D: Carry oxygen
- 中国大学MOOC: The human body is incredibly __________. When you donate a pint of blood, you lose about 3.5 trillion red blood cells, but your body quickly replaces them.
- Antibodies are made by a class of white blood cells called ___ lymphocytes.
内容
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They are the cells of the immune system that involved in protecting the body against both infectious disease and foreign invaders, which are also known as white blood cells(WBCs). What are they? A: Erythrocytes. B: Leukocytes. C: Platelets. D: Plasma.
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Which component will rise gradually with the stored time prolonging in Stored Blood? A: concentration of kalium ion B: white blood cells C: thrombogen D: platelets E: red blood cells
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Hematopoiesis refers to the formation of blood cells in the living body (especially in the bone marrow).____
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中国大学MOOC: _________ is a substance that is put into the blood and that protects the body from a disease.
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Cancer cells destroy not only all rival cells, in their ruthless biological warfare, but also destroy the larger organization—the body itself—signing their own suicide warrant. A: refined B: random C: merciless D: perpetual