HLAs are responsible for immune-mediated organ transplant rejection
Indicate whether the statement is true or false.
Answer: TRUE
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Glycosylated proteins and lipids within the plasma membrane are important for
A. cell recognition. B. cell protection. C. cell energy storage. D. cell recognition and protection. E. cell protection and energy storage.
________ are cytoplasmic channels through openings in plant cell walls.
Fill in the blank(s) with the appropriate word(s).
Interleukins are
A. produced by leukocytes. B. important in both innate and adaptive immunity. C. involved in directly killing tumor cells. D. protein molecules. E. produced by leukocytes AND protein molecules.
Which statement about abiotic factors in aquatic biomes is true?
a. Movement affects the availability of nutrients in both rivers and oceans. b. The numerous photosynthetic organisms in abyssal zones require sunlight. c. Chemosynthetic bacteria are found primarily in brackish water. d. Dissolved solids are found in oceans but not rivers.