Pickling is in fact a food preservation technique. Micro-organisms, especially bacteria have diverse habitats and nutritious foods that we eat are among their favorites too. However, in pickling, a lot of acid and salt is added to preserve them.
The biological concept behind these is that, with the high salt content, a so-called hypertonic environment is developed. In such environments, the cells start losing the water inside them. This shrinks the cells and thus the bacteria are incapable of thriving. Secondly, due to high acidity, the pH of the pickle is very low and it is well known that most common bacteria (that spoil our food) thrive well at slightly alkaline pH. Thus, because of the high acidity, they aren't capable of thriving on the food.
Next time you treat your palate with your favorite pickle, do remember the salt and acid activity that is giving you an edge over the microbes.
Preventing or retarding the action of microbes that cause spoilage
Some organisms have no bones to leave behind. Even so, the conditions have to be perfect for a fossil to be formed: they have to die in a riverbed; no other animals can damage the bones; sedimants have to slowly build up without the bones being moved ; and finally they have to be discovered by a person.
HYHH
Which of the following BEST describes the concept behind Web 2.0? Download Write Read-write Upload
A simple one!
The rock cycle?
The main concept behind 4chan is that it is an anonymous image board where anyone can post. The newer posts are nearer to the top of the comment tree.
The concepts behind World Youth Day are evangelization and catechesis.
The concept behind photography is mainly just capturing the moment. Photographs are taken to treasure for many geneerations to come as they are something that one can look back at and recall that moment.
the concept was trained dogs could act as eyes for those who could not see.
to export more than you import
men because he wanted to that's why