Which of these is a viral disease? (Level 1)

Which of these is a bacterial disease? (Level 1)

What are viruses that attack bacteria called? (Level 1)

Which protists are entirely parasitic and have no means of locomotion? (Level 1)

Bacteria whose cell walls are covered by a plasma membrane-like structure are classified as __________. (Level 1)

Trypanosoma is a unicellular, eukaryotic blood parasite that causes African sleeping sickness. It belongs to which kingdom? (Level 1)

Which of these processes are involved in prokaryotic reproduction? (Level 2)

Classification of prokaryotes may use many kinds of traits. Which of these are not used in prokaryotic classification? (Level 2)

Which protists use flagella for locomotion? (Level 2)

Viruses are not cellular and are often considered to be nonliving. Which of the following characteristics supports this conclusion? (Level 3)

What are viruses, viroids, and prions?

What kind of taxis is it if the organism behaviorally responds to substances in a crust of bread?

What type of bacteria are photosynthetic?

For plants to survive and thrive they depend upon what kinds of bacteria?

What phytoplankton group can reproduce so prodigiously that they can cause "red tides," killing large numbers of fish because the gills are clogged?

All species of what nonmotile group of protozoans must obtain their dietary needs while they are living inside another organism.