Luiz Roesch and colleagues conducted a study to determine how many types of bacteria exist in a gram of soil at different locations around the world. They found that soil from agricultural fields harbored considerably fewer species of bacteria than did soil from forests (see Life in a Bacterial World). Propose some possible reasons that agricultural fields might have less bacterial diversity than forests.

Q: What is the significance of microbial diversity? How do you assess diversity? Explain your answer.

A: Introduction :- Microbial diversity refers to the variety of unicellular organisms, bacteria,…

Q: Do the different species of bacteria appear the same or different from each other when grown in…

A: Do the different species of bacteria appear the same or different from each other when grown in…

Q: With antibiotic Without antibiotic 0+ Figure 1 % Survival Staphylococcus aureus Vibrio cholerae…

A: Introduction : When used properly, antibiotics are effective treatments for several infections and…

Q: List and describe the phases of the growth curve of a population of bacteria.  Explain how a…

A: Bacteria are the minute organism that is widespread everywhere. They are present in the air, water,…

Q: If a bacterial species is not susceptible to an antibacterial drug at the concentration present in a…

A: Antibiotic susceptibility test is the test used to determine the effect of antibiotic to an…

Q: In terms of the areas of the human body, how does this discrepancy in area differ in type and number…

A: The normal flora refers to the aggregation of microorganisms associated with the body. Microbiology…

Q: How well do you think bioremediation achieves the goal of cleaning up pollution? Your claim should…

A: Bioremediation is the process of degrading, removing, modifying, immobilising, or detoxifying…

Q: There are three main ways that bacteria and archaea are essential to eukaryotic life.  Explain the…

A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…

Q: In studying Lokiarchaeota, researchers identified eukaryotic signature genes and used this…

A: Housekeeping genes are essential for basic cellular functions and are expressed at relatively…

Q: Do you think that a Gram negative or Gram positive bacteria would be more negatively affected by a…

A: Introduction: The intricate multilayered structure of a bacterial cell envelope serves to shield…

Q: Your right-handed TA has pressed her hands onto agar plates.  There are four plates total--left hand…

A: It is found that female hands consist of a more diverse microbial population than that of a male's…

Q: Can all bacteria be cultured? Why/why not.

A: Microorganisms (microbes) are defined as the organisms that are very small and microscopic in size…

Q: Alexander Fleming was working with bacteria called staphylococcus, which looked like bunches of…

A: Antibiotics were discovered by Sir Alexander Fleming by accident. While growing Staphylococcus, he…

Q: if a population of soil bacterium (Bacillus mycoides) can evolve resistance to antibiotics produced…

A: The appropriate time frame for determining the percentage of cells with antibiotic resistance in a…

Q: During which growth phase are bacteria experiencing conditions in which microbial waste products are…

A: Bacterial growth curve is the graphical representation of the cycle of cell culture in the presence…

Q: Two bacterial species have generation times of 20 min and 18 hours respectively. From the below…

A: Bacterial growth refers to the increase in the number of bacterial cells in a culture. Bacterial…

Q: methanogen Pathways photosystems I and II fermentation and energy from methane) fermentation Other…

A: The cell wall of gram negative bacteria is made up of lipopolysaccharide and that of gram positive…

Terrestrial Ecosystem

An ecosystem is a collection of interconnected communities. It includes both living and non-living elements of specific strata. The terrestrial ecosystem is solely related to the ecosystem present on the land and covers 25 to 30% of the total earth’s surface area.