An acid is any substance that
a: increases a solution's ph
b: produces hydroxide ions
c: donates a proton
d: acts as a hydrogen acceptor

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

Asolid that forms and separates from a liquid mixture is called

What does the xylem do? stores the glucose captures the sunlight absorbs oxygen into the leaf carries water from the roots to the leaves