When it comes to cholesterol, it is better to have
a.
more cholesterol
b.
more ldl
c.
a high ratio of ldl to hdl
d.
more hdl

Are needed by the body in large amounts in order to maintain good health

What is the main structural difference between enveloped and nonenveloped viruses? a) enveloped viruses have their genetic material enclosed by a layer made only of protein.b) nonenveloped viruses have only a phospholipid membrane, while enveloped viruses have two membranes, the other one being a protein capsid.c) enveloped viruses have a phospholipid membrane outside their capsid, whereas nonenveloped viruses do not have a phospholipid membrane.d) both types of viruses have a capsid and phospholipid membrane; but in the nonenveloped virus the genetic material is between these two membranes, while in the enveloped virus the genetic material is inside both membranes.

The type(s) of air pollution you will be discussing