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jackiemartini09 jackiemartini09
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Posts: 504
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6 years ago
Which of the following is a specific defense mechanisms or barriers used by an animal?
  a. acid secretions of the stomach
  b. inflammation
  c. antibodies
  d. mucus in the respiratory tract
  e. skin

Question 2

Which of the following immune system components has been identified in almost all organisms studied?
  a. bone marrow
  b. phagocytes
  c. antimicrobial peptides
  d. T-cells
  e. memory cells
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wrote...
6 years ago
Answer to q. 1

c

Answer to q. 2

c
wrote...
6 years ago
Tremendous help, I just double-checked it with my friend Smiling Face with Open Mouth
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