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The period of time after bacteria come in contact with a food and before they start growing and multiplying?
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If a food spoiled and then was placed in the freezer would it kill bacteria?
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.
Does rainwater contain coliforms bacteria?
Coliform bacteria is associated with fecal matter, and since rain does not come in contact with fecal matter before hitting the ground, it should not contain coliform bacteria.
How does fresh chicken become unfresh?
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.
What are the thick walled structures called that exist for hundreds of years before growing again as bacteria?
Celloluse Cell Wall or Cell Membrane
What kind of care must be taken when working with bacteria?
Avoid contact with eye and mouth as bacteria can get into your body. Use lab gloves if possible and wash hands properly before and after the experiment.
When multiplying use fraction notification we form products in the numerator and the denominator but do not immediatily calculate the product?
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.
What is wrong with leaving hamburger meat out on the table the day before you eat it?
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.
How is multiplying mixed numbers different than multiplying fractions?
if you have mixed numbers you make them into improper fractions before you multiply
When multiplying do you estimate before or after you get the answer?
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.
What happens to bacteria at minus 18 degrees centigrade?
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.
When was bacteria invented?
No one "invented" bacteria, bacteria was around billions of years before we were.
What is skin bacteria?
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..
