Buffers are chemicals that do all of the following

a. keep ph within certain limits.
b. take up excess oh–
c. take up excess h+
d. allow ph to change drastically

Four types of motile cells in human body?

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel

5points what is term for the process of gathering information through images taken at a distance? o a. global positioning o b. topography o c. remote sensing o d. cartography submit