The category of algae that has a glass shell called a frustule, are the 

The best term for the anchoring device of the tapeworm is called the 

The sexually transmitted infection gonorrhea is caused by microorganisms in the genus 

The bacteria that inhabits human mucous membranes but lacks a cell wall is 

Propionibacterium

Bacteroides is a gram negative rod that 

The best term for an organism that uses aerobic respiration but can ferment if oxygen is not present is

The original earth’s atmosphere is believed to have been full of oxygen.

Which of the following are possible benefits of the bioluminescence of some fish and squid, produced by bacteria?

How does personal happiness contribute to workplace success and satisfaction?