Identify the viral structure described.
(complex viruses) have a capsid that has polyhedral and helical characteristics, and may have extra structures like protein tails. bacteriophages are examples.
(enveloped viruses) have an outer lipid bilayer known as a viral envelope, which is studded with proteins. influenza and hiv are examples.
(polyhedral viruses) have many triangular faces. most have 20 triangular faces and 12 corners. polio and the papilloma virus are examples.
(helical viruses) have long narrow capsids shaped liked cylinders. rabies and ebola are examples.
4 images of a polyhedral, a helical, an enveloped, and complex virus are shown.