The bacterial genus that is mannitol salt agar selective is Staphylococcus. Mannitol salt agar or known as MSA is often used in culture of certain bacteria since it is selective and is a differential growth medium. It would only encourage growth specific group of bacteria and inhibit other growth. It is very important in medical studies and laboratories as it is able to determine pathogenic microorganisms in a short time. It has a high amount of salt making it selective only to gram positive bacteria like the Staphylococcus and the Micrococcaceae. The salt level is about 7.5% to 10% which is inhibitory to many bacteria.
The biosphere includes all the living organisms on the planet
<u>Explanation:
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- The biosphere includes all the living organisms on the planet
- The biosphere is a global ecological system that forms the layer of the earth where life exists.
- The layers of earth that form the biosphere are lithosphere (rock), hydrosphere (water) and atmosphere (air) which together known as an ecosystem.
- Biosphere acts as a self-supporting and self-regulating system were the remaining of the dead plants and animals are released into soil and ocean thus, in turn, it is reabsorbed by plants for growing.
- The biosphere sometimes is one large ecosystem that is comprised of a complex community of living and nonliving things functioning as a single unit.
By capturing the pollen on their feet as they land on each new plant
Since the population of finches had decreased when deforestation and logging started, and it returned to its original values prior to deforestation when locals started to replating trees, it follows from these facts that trees are being a limiting factor in finches' populations, either because they're acting as niches, food, both or anything else that these populations needed to survive.
Therefore, the correct answer to this question is option D.