Which vessels are composed of only a single layer of endothelial cells?

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

As a result of wildfires, in grasslands. a) tree growth increases b) grass growth increases c) soil quality decreases d) invertebrate variety decreases

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are