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slamgirl [31]
3 years ago
10

What is the best way to avoid bacterial contamination? food handling

Biology
2 answers:
Vesna [10]3 years ago
7 0
The best way to avoid bacteria during food handling is wash your hands and clean surfaces before starting. Harmful bacteria can spread throughout the kitchen and get onto cutting boards, utensils, and counter tops. To prevent this: Wash hands with soap and hot water before and after handling food.
Volgvan3 years ago
7 0
Using sanataition and sterilization on any surface touched by a substance that could be contaminated, for example, if you are chopping onions wipe clean your surface wipe clean your knife peel and rinse the onion and wash your hands. and if being cooked, high temp for sanitation
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What type of solution is this cell sitting in?
Dafna1 [17]

Answer:

The correct option is A. The cell is sitting in a hypertonic solution.

Explanation:

A hypertonic solution is a solution in which there are more number of solutes present in the solution than inside the cell. The solutes then tend to pass into the cell through diffusion from the solution.

As it can be seen in the diagram, the concentration of salt is more in the solution i.e 40%. Hence, the salt from the solution enters into the cell by diffusion and has a concentration of 10% inside the cell which shows the cell to be placed in a hypertonic environment.  

6 0
3 years ago
Choose the true statement(s) that support(s) the endosymbiotic theory. To be marked correct, you'll need to select all true stat
horsena [70]

Answer:

a.Many mitochondrial genes resemble proteobacteria genes, while the genes in the chloroplast resemble genes found in some photosynthetic bacteria.

c.Mitochondria and chloroplasts both have their own circular DNA and 70S ribosomes that are similar to those found in bacteria.

d.Mitochondria and chloroplasts replicate by a process similar to mitosis.

Explanation:

Endosymbiotic theory states that mitochondria and chloroplast which are organelles of eukaryotic cells were once independently living micro-organisms but with due course of time eukaryotic cells engulfed them and they become an integral part of these eukaryotic cells.

The resemblance between mitochondrial genes with those of proteobacteria and chloroplast genes with photosynthetic bacteria strongly support endosymbiotic theory. Apart from this, the presence of their own DNA that too circular just like prokaryotic microbes and 70 S ribosomes also support this theory. Also just like prokaryotic cells, before cell division mitochondria and chloroplasts undergo replication by means of a process known as binary fission.

3 0
3 years ago
How does elevation affect climate?
Kisachek [45]

As elevation increases, air density decreases resulting in a decreased ability to hold heat.

<h3>Effect of elevation on climate</h3>

As you increase in elevation, there is less air above you thus the pressure decreases. As the pressure decreases, air molecules spread out further and the temperature decreases.

P = ρgh

where;

  • P is the air pressure
  • ρ is air density
  • h is elevation
  • g is acceleration due to gravity

As the pressure decreases, air molecules spread out further and the temperature decreases. The decrease in temperature affects the amount of heat that air can hold.

Thus, as elevation increases, air density decreases resulting in a decreased ability to hold heat.

Learn more about effect of elevation on climate here: brainly.com/question/463893

#SPJ1

4 0
1 year ago
What happens to a female sex cell that has left the ovary if it isn't fertilised?
Juli2301 [7.4K]
A sex cell that hasn't been fertilized and has left the ovary would come out during the menstrual cycle under normal circumstances.
6 0
3 years ago
Which of the following help to explain a connection between science and society
kobusy [5.1K]
What is the following?
4 0
2 years ago
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