Answer the following statements true (T) or false (F)
1. When B cells come in contact with a specific antigen, they develop into plasma cells.
2. Plasma cells are responsible for long-term immunity.
3. T cells are responsible for long-term immunity.
4. T cells are responsible for humoral immunity.
5. T cells can kill invading cells directly by poisoning them and by releasing a substance that attracts macrophages
1. TRUE
2. FALSE
3. FALSE
4. FALSE
5. TRUE
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Fill in the blank(s) with correct word
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A. stress-relaxation mechanism B. chemoreceptor mechanism C. CNS ischemic mechanism D. adrenal medullary mechanism E. baroreceptor mechanism
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A) spermatogonia; spermatocytes B) spermatocytes; spermatids C) spermatozoa; spermatids D) spermatocytes; spermatozoa E) spermatids; spermatozoa