What stage of sewage treatment produces methane?
D) algae. E) mycorrhizae. 12) What stage of sewage treatment produces methane? E) None of the stages of sewage treatment produce methane.
Which of the following is an example of a process made possible via symbiosis?
Infection thread is formed. Which of the following is an example of a process made possible via symbiosis? Cattle and sheep graze on cellulose-rich plants.
Which of the following is a common source of antibiotics?
Antibiotics commonly are produced by soil microorganisms and probably represent a means by which organisms in a complex environment, such as soil, control the growth of competing microorganisms. Microorganisms that produce antibiotics useful in preventing or treating disease include the bacteria and the fungi.
What is the difference between biostimulation and bioaugmentation quizlet?
What is the difference between biostimulation and bioaugmentation? Biostimulation is a bioremediation process designed to remove pollutants from an environment. Bioaugmentation is a method used in laboratories to promote the growth of fastidious microbes.
Which of the following processes is also known as ammonification?
Ammonification. When an organism excretes waste or dies, the nitrogen in its tissues is in the form of organic nitrogen (e.g. amino acids, DNA). Various fungi and prokaryotes then decompose the tissue and release inorganic nitrogen back into the ecosystem as ammonia in the process known as ammonification.
Which of the following nitrogen cycle processes produces the greenhouse gas N2O?
Which of the following nitrogen cycle processes produces the greenhouse gas N2O? -Denitrification produces the greenhouse gas N2O through the reaction 2 NO3- → 2 NO2- → 2 NO → N2O → N2. Excess nitrates from fertilizers increase the rate of denitrification and the amount of N2O released into the atmosphere.
Which of the following bacteria produce the most antibiotics?
Streptomyces is the largest antibiotic-producing genus, producing antibacterial, antifungal, and antiparasitic drugs, and also a wide range of other bioactive compounds, such as immunosuppressants. They produce over two-thirds of the clinically useful antibiotics of natural origin.Jan 3, 2021
What are the antibiotics produced by bacteria?
Penicillin and other antibiotics
| Some clinically important antibiotics | ||
|---|---|---|
| Antibiotic | Producer organism | Activity |
| Neomycin | Streptomyces fradiae | Broad spectrum |
| Streptomycin | Streptomyces griseus | Gram-negative bacteria |
| Tetracycline | Streptomyces rimosus | Broad spectrum |
Which type of bacteria produce most antibiotics?
During the “Golden Age” of antibiotic discovery, 70-80% of all discovered antibiotics came from a single genus of bacteria; Streptomyces.Apr 10, 2019
Which of the following are steps in primary sewage treatment?
Treatment Steps
- Step 1: Screening and Pumping. ...
- Step 2: Grit Removal. ...
- Step 3: Primary Settling. ...
- Step 4: Aeration / Activated Sludge. ...
- Step 5: Secondary Settling. ...
- Step 6: Filtration. ...
- Step 7: Disinfection. ...
- Step 8: Oxygen Uptake.
Which phase of sewage treatment are trickling filters sometimes used?
The secondary stage of treatment removes about 85 percent of the organic matter in sewage by making use of the bacteria in it. The principal secondary treatment techniques used in secondary treatment are the trickling filter and the activated sludge process.
What is the difference between Bioaugmentation and bioremediation?
As nouns the difference between bioremediation and bioaugmentation. is that bioremediation is (biochemistry) the use of biological organisms, usually microorganisms, to remove contaminants, especially from polluted water while bioaugmentation is the use of microorganisms to help decompose pollutants.