Answer:C. Point, nonpoint
Explanation:
Point source of water pollution originate from a single source and the source of origin can be determined. Industrial and sewage drainage systems are the examples of point source pollutants. The source of pollutant is easy to detect and monitor.
Non-point source of water pollution the source of pollution remains undetermined. The pollutants may enter in water body through multiple sources. Hence, it is difficult to track back the source of single pollutant. Thus non-point source pollution cannot be clean and monitored.
The scientific method is a problem-solving approach used in Biology and other scientific disciplines. This method has five basic steps which help scientists test their hypotheses. The first step of the scientific method is to make an observation. In this particular example, the scientist observes probably that salt has chemical and physical properties which could affect the life cycle of bacteria. The second step would be to ask a question and that would be to ask whether salt indeed has any effect on that particular type of bacteria that he/she studies. The third step would be to form a hypothesis and that would be to state that the specific bacterial type will be strongly affected by the salt. The fourth step would be to predict that if the scientist exposed this bacterial type to a salty environment, the bacteria would not survive. The fifth and final step is to test this prediction and if the bacteria do not survive, then the scientist can conclude that salt affects this bacterial type.
The correct answer is "transmission electron microscope".
The transmission electron microscope can magnify the organelles of the cell clearly; as in light microscopes wherein most organelles cannot be visualized. TEM works by using a beam of electrons to pass through a specimen to make a clear image. Because of its superior magnification, mitochondrial defects can be visualized easily.
Attached is a sample picture of a transmission electron microscope image of a mitochondria.
Answer:
several transcription factors (TFs)
The following options are attached to the above question:
A. Metabolism
B. Absorption
C. Oxidation
D. Excretion
ANSWER
The correct option is C.
Biological oxidation of alcohol is the process by which the liver handles the presence of alcohol in the body system. The liver is responsible for metabolizing the alcohol that are present in the body. The metabolism of alcohol occurs in two steps; the first step is the oxidation of alcohol to ethanal or acetaldehyde. This product is very toxic to the human body and is majorly responsible for the symptoms of hangover that drinkers usually experience. The liver oxidises ethanal to acetic acid as quickly as possible in order to prevent damage to the body system.
