Which of the following oxygenic phototrophs are believed to have generate the majority of oxygen gas in Earth’s atmosphere? a. Chlorobium b. Chloroflexus c. Clostridium d. Cyanobacteria e. purple bacteria

Which of the following oxygenic phototrophs are believed to have generate the majority of oxygen gas in Earth’s atmosphere? a. Chlorobium b. Chloroflexus c. Clostridium d. Cyanobacteria e. purple bacteria

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter13: Diversity Of Microbes, Fungi, And Protists

Section: Chapter Questions

Problem 3RQ: The first organisms that oxygenated the atmosphere were ______. a. cyanobacteria b. phootrophic...

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Concept explainers

Modes of Nutrition

It is a biological process of providing or obtaining food that is necessary for growth and health. It includes many physiological processes - absorption, ingestion, assimilation, catabolism, excretion, etc. In biology, the science that deals with nutrition's physiological and chemical processes are called "nutritional science."

Question

Which of the following oxygenic phototrophs are believed to have generate the majority of oxygen gas in Earth’s atmosphere?

a.
Chlorobium

b.
Chloroflexus

c.
Clostridium

d.
Cyanobacteria

e.
purple bacteria

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