What specific kind of pathogen is HIV? •a bacteria called an antibacteria
•a parasite called an anti parasite
•a virus called a provirus
•a virus called a retrovirus

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.

Which many - celled organisms are capable of causing diseases in humans

How much do the tanakas spend on health insurance premiums each year