Answer:
The effectiveness of chemical disinfectants has historically been compared to phenol.
Explanation:
The effectiveness of a disinfectant or antiseptic can be determined in a number of ways. Historically, a chemical agent’s effectiveness was often compared with that of phenol, the first chemical agent used by Joseph Lister. In 1903, British chemists Samuel Rideal (1863–1929) and J. T. Ainslie Walker (1868–1930) established a protocol to compare the effectiveness of a variety of chemicals with that of phenol, using as their test organisms Staphylococcus aureus (a gram-positive bacterium) and Salmonella enterica serovar Typhi (a gram-negative bacterium). They exposed the test bacteria to the antimicrobial chemical solutions diluted in water for 7.5 minutes. They then calculated a phenol coefficient for each chemical for each of the two bacteria tested. A phenol coefficient of 1.0 means that the chemical agent has about the same level of effectiveness as phenol. A chemical agent with a phenol coefficient of less than 1.0 is less effective than phenol. An example is formalin, with phenol coefficients of 0.3 (S. aureus) and 0.7 (S. enterica serovar Typhi). A chemical agent with a phenol coefficient greater than 1.0 is more effective than phenol, such as chloramine, with phenol coefficients of 133 and 100, respectively. Although the phenol coefficient was once a useful measure of effectiveness, it is no longer commonly used because the conditions and organisms used were arbitrarily chosen.
Answer: moving the eyes back and forth, digestion, heart, and muscle coordination
autonomic means that the system is decentralized. The vital signs and function of the organs and organ system are fine-tuned by the autonomic nervous system, which is responsible for constantly adapting the body environmental changes, both internal and external.It has output responsibilities in regulating the internal environment of your body. Associated with vital internal functions. it helps maintain internal balance and stability (homeostasis) by coordinating activities like digestion, respiration, blood circulation, excretion, and hormone secretion. It is always working. It operates reflexively and under the radar of consciousness and we are unaware of its continuous operation.
Answer:
Basal Cell Carcinoma is probably the likeliest answer
Explanation:
Answer:
D. Descent with modification
Explanation:
Answer:
Air temperature
Explanation:
Air tempurature drives all forces of weather on Earth.