Which of the following statements about viruses is false?

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A diatom's ________ is a glassy cell wall.

frustule

Most marine planktonic viruses are best described as

icosahedral with lytic life cycles.

Which of the following represents the correct steps in nitrification?

Ammonia → Ammonium → Nitrite → Nitrate

A prokaryotic microbe that is small, can tolerate very high temperatures and high salinities, and produce methane is most likely a member of the ________.

Archaea

Which terrestrial fungus that produces aflatoxins has been recently found in soft coral tissues?

Aspergillus

What is the name for a DNA virus specifically suited for the infestation of bacteria?

Bacteriophage

Which of the following is an orange accessory pigment that absorbs blue light and protects chlorophylls from damage?

Beta-carotene

What method of reproduction do bacteria use?

Binary fission

Which types of bacteria use energy derived from chemical reactions involving inorganic substances such as sulfides and elemental sulfur rather than sunlight?

Chemosynthetic bacteria

Which of the following is an example of a haptophyte?

Coccolithophore

What is thought to be the reason for the decline of stromatolites?

Competition from seaweeds and sponge

What organisms are responsible for paralytic shellfish poisoning (PSP)?

Dinoflagellates

What organism is in a symbiotic relationship with zooxanthellae?

Foraminiferans

Archeons that can survive at very warm temperatures are ________.

Hyperthermophiles

Which of the following statements about viruses is false?

They contain organelles.


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