What type of cells did Theodore Schwann study?

What substance acts to prevent sudden ph changes in bodily fluids?

What type of plant is good for a bioassay and where can i buy it? i only have a month.

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.