Specific cells in developing seeds and maturing fruits have receptors for ethylene, but cells in stems
generally do not.
Indicate whether the statement is true or false.
T
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An immune complex resulting from an interaction of antibody with cells or particles which becomes large enough to settle out of solution is called a(n)
A. ouchterlony double diffusion. B. hemagglutination. C. precipitation reaction. D. agglutination reaction.
Lymphocytes are comprised of which of the following cell types?
A. T cells B. NK cells C. B cells D. All of the choices are correct. E. T cells and B cells only
Which of the following is the correct path of
urine out of the body?
a. kidneys to ureter to bladder to urethra b. kidneys to urethra to bladder to ureter c. kidneys to bladder to urethra to ureter d. kidneys to bladder to ureter to urethra e. bladder to kidneys to ureter to urethra
Which of the following can lyse pathogenic cells?
a. interleukins b. interferons c. TNF d. complement e. all of these