Freezing doesn't necessarily kill bacteria. It stops them from multiplying, but they can revive when the food is thawed. And the toxins they produced before being frozen will still be there.
Bacteria is in the air and on the chicken's skin. When the chicken is alive, it produces substances that keeps the bacteria under control. When the chicken dies or is killed, nothing keeps the bacteria from multiplying. As a result, when chicken are killed and the feathers are removed, they are refrigerated or fro zed. Refrigeration slows the growth of bacteria. Freezing stops the growth of bacteria. Before refrigeration, people skinned the chickens they killed the pervious day before they cooked them.
Celloluse Cell Wall or Cell Membrane
They become dormant (sleeping) and stop growing or grow very slowly as the conditions are not correct for them to grow or reproduce. They need warmth to do that. However, they are not killed either. Temperatures of over 63*C are needed to kill bacteria in food, but there are some types that are killed before this and some that can survive in extreme heat. These are more rare though and are not likely to exist in food, or anything that a normal human would regularly be in contact with.
Yes, rainwater can contain coliform bacteria if it comes into contact with fecal matter from animals or humans. However, the presence of coliforms in rainwater is not common and is generally low unless there is contamination from nearby sources. It is still recommended to treat rainwater before consumption to eliminate any potential health risks.
That is correct. It is easier to simplify the fraction before multiplying all the factors in the numerator and the denominator.That is correct. It is easier to simplify the fraction before multiplying all the factors in the numerator and the denominator.That is correct. It is easier to simplify the fraction before multiplying all the factors in the numerator and the denominator.That is correct. It is easier to simplify the fraction before multiplying all the factors in the numerator and the denominator.
Pathogenic bacteria just love growing at room temperature. So by leaving the meat at room temperature you could be growing the stuff that could make you ill . . . or worse.
if you have mixed numbers you make them into improper fractions before you multiply
No one "invented" bacteria, bacteria was around billions of years before we were.
When multiplying, it is always better to estimate before one gets the answer instead of after. This will allow a person to see if they are near the answer they are looking for so they know they're right.
skin bacteria is pretty much just bacteria in the skin, usually picked up by bacteria from your hands that has spread when you've touched your face or from your pillow and sheets in your bed. I recommend cleaning your pillow cases once a week to keep bacteria away, and also if you have long hair too tie it up before bed as your hair may pick up bacteria and spread it too your face when in contact..
To dispose of a microscope slide with bacteria, follow proper lab safety guidelines by autoclaving or chemically treating the slide to kill the bacteria before disposing of it as biohazard waste. Do not discard it in regular trash to prevent potential contamination. Contact your institution's biosafety officer for specific protocols.