9. Metals are known to a. have a dull surface.
b. provide fuel.
c. conduct heat and electricity well.
d. occur only in placer deposits.

Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

Compare the parts of a cell and the cell as a whole to another common nonliving system (i. e., a car, a city, describe the parts of a cell and their primary function.