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vicmillz vicmillz
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6 years ago
Which immune cells can kill cancerous cells that lack MHC markers?
 
  a. effector B cells
  b. cytotoxic T cells
  c. natural killer cells
  d. both cytotoxic T cells and natural killer cells
  e. all of these

Question 2

A digestive system with _____ is able to carry out various tasks of digestion at once.
 
  a. bilateral symmetry
  b. collar cells
  c. a one-way tube, a mouth, and an anus
  d. radula
  e. a two way sac-like cavity
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lorrkelly1lorrkelly1
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vicmillz Author
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6 years ago
Helped a lot
Tim0301
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Yesterday
Brilliant ツ
lubennick
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2 hours ago
Good timing, thanks!
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