Transfusion-Associated Graft Versus Host Disease (TA-GVHD)is

question 2

Multiple Choice

Transfusion-associated graft versus host disease (TA-GVHD) is

• A)prevented through leukoreduction
• B)almost universally fatal
• C)caused by engraftment of donor B lymphoctyes
• D)most often diagnosed in immunocompetent patients

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Definitions:

Classical Conditioning

An educational method where two signals are consistently associated together, leading to a reaction initially triggered by the second signal but ultimately provoked by just the first signal.

Proximate Causes

Immediate, underlying factors within an organism that explain "how" biological processes occur.

Diurnal Animals

Animals most active during the day (e.g., pigeons). Compare with crepuscular animals and nocturnal animals.

Navigation

Involves the use of cues to change direction when necessary in order to reach a specific destination; requires a sense of direction, called compass sense, and an awareness of location, called map sense.