Question

identify the viral structure described. have a capsid that has polyhedral and helical characteristics, and may have extra structures like protein tails. bacteriophages are examples. have an outer lipid bilayer known as a viral envelope, which is studded with proteins. influenza and hiv are examples. have many triangular faces. most have 20 triangular faces and 12 comers. polio and the papilloma virus are examples. have long narrow capsids shaped liked cylinders. rabies and ebola are examples.polyhedralhelicalenvelopedcomplex

Explanation:

1. The first description matches complex viruses, which combine polyhedral and helical capsid features and often have protein tails, like bacteriophages.
2. The second description refers to enveloped viruses, which have a lipid bilayer envelope with embedded proteins, seen in influenza and HIV.
3. The third description fits polyhedral viruses, which typically have 20 triangular faces and 12 corners, like polio and papilloma virus.
4. The fourth description matches helical viruses, which have long, cylindrical capsids, such as rabies and Ebola viruses.

Answer:

1. Complex
2. Enveloped
3. Polyhedral
4. Helical