There was a submarine under the sea that created all life
Cells emerged from mounds under the hot sea after being mixed in the anoxic environment
The flow of substances through ocean crust in hot hydrothermal water created mineral pores, which grew more complex and dispersed after forming bilayers
Mounds of precipitates gathered in the hot hydrothermal water, creating a reaction and producing cells, which were released into the water
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Other questions in this quiz
2. What is syntrophy?
Two organisms cooperate as they cannot complete a process alone
When an organism lives inside of a host and both function in symbiosis
When an organism infects another organism
None of the above
3. What are the methods of inhibiting microbial growth?
Disinfection
All of the above
Sanitisation
None of the above
4. Which of these definitions is INCORRECT?
Denitrification - N retention, produces NH4+
Dissimilation - N retention, produces NH4+
Denitrification - N removal, produces N2
None of the above
5. What is biochemical oxygen demand (BOD)?
Dissolved carbon dioxide required by microbes to oxidise all inorganic and organic matter in 10 days at 20°C.
Dissolved oxygen required by microbes to oxidise all inorganic and organic matter in 5 days at 20°C.
Dissolved oxygen required by microbes to oxidise all inorganic and organic matter in 5 days at 30°C.
Dissolved carbon dioxide required by microbes to oxidise all inorganic and organic matter in 5 days at 20°C.
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