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

Biology & Microbiology

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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

Biology & Microbiology

________ is the scientific study of the relationship between organisms and their environment

Fill in the blank(s) with correct word

Biology & Microbiology

A(n) alternate leaf arrangement is one in which there is one leaf per node. Indicate whether the statement is true or false

Biology & Microbiology

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

Biology & Microbiology