Abnormal accumulation of fluid in tissues or a body cavity is called _____

Colony stimulating factors:

a. Have poor affinity for their target cells b. Require high concentrations to be effective c. Are produced by many cells d. Are all lineage specific

The impression or pattern that can be seen when paper is held up to the light is called a ____. 

A. photo-sensitive mark B. watermark C. letterhead D. logo E. copyright