Which of the following white blood cells are implicated in transplanted organ rejection?
a. eosinophils
b. macrophages
c. T cells
d. natural killer cells
c. T cells
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An organism is considered truly multicellular when ________.
A. its cells form colonies B. its cells specialize in various tasks C. each cell can carry out all of life's functions D. its cells cannot survive on their own
________ is the scientific study of the relationship between organisms and their environment
Fill in the blank(s) with correct word
A(n) alternate leaf arrangement is one in which there is one leaf per node. Indicate whether the statement is true or false
A P. bursaria cell that has lost its zoochlorellae is aposymbiotic. If aposymbiotic cells have population growth rates the same as those of healthy,
zoochlorella-containing P. bursaria in well-lit environments with plenty of prey items, then such an observation would be consistent with which type of relationship? A) parasitic B) commensalistic C) toxic D) mutualistic