LIPIDS are a large and varied groups of molecules that are usually not soluble in water.
Density can be useful in identifying substances. It is also a convenient property because it provides a link (or conversion factor) between the mass and the volume of a substance. Mass and volume are extensive (or extrinsic) properties of matter - they depend on amount.
Answer:
Fast-Twitch Fibers: baseball pitching
Slow-Twitch Fibers: long distance swimming, long distance running
Half .
I think that’s right .