The process of eliminating those lymphocytes that react or respond against self-antigens is called ________.
A. inflammation
B. activation of complement
C. phagocytosis
D. natural selection
E. negative selection
Answer: E
You might also like to view...
The stomach lining contains numerous depressions called
A) gastric glands. B) gastric mucosa. C) intestinal glands. D) gastric pits. E) All of the answers are
A patient's blood pH is 7.48; partial pressure of carbon dioxide is 32 mm Hg and levels of bicarbonate in the blood are 20 mEq/liter. What can you tell about this patient's condition? Explain your answer
What will be an ideal response
The type of vesicular transport by which large molecules or large amounts of substances are secreted from a cell is ________.
Fill in the blank(s) with the appropriate word(s).
An atom of chlorine has 17 protons and 18 neutrons. Which of the following statements is true?
A. Chlorine has 35 electrons. B. Chlorine has an atomic number of 18. C. Chlorine atoms have 18 electrons. D. Chlorine has a mass number of 35. E. Chlorine has an atomic number of 35.