What kinds of animals lived during the Permian Era?

Identify two types of chemical bonding in the source of dietary potassium

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

Which describes fat? a: a carbohydrate that produces energy b: a nucleic acid that directs cell function c: a lipid that stores energy d: a protein that speeds up a chemical reaction