Explanation:
Before explaining the following phenomenon, it is good to clarify one thing: the laws of thermodynamics are fulfilled and cold water usually freezes faster than hot water. However, and although it seems counterintuitive, it has been observed for centuries that this fact is not always fulfilled and under certain circumstances, hot water freezes before cold water. Aristotle was the first to record this phenomenon, but it was not published as a scientific observation until 1969 by Erasto Mpemba. Precisely due to the surname of the scientist born in British Tanganyika, this phenomenon is known as the Mpemba effect. A curious effect that has recently been having an impact due to a new viral called "boiling water challenge" and consists of throwing boiling water into the air to see how it quickly freezes and turns into snow.
A type of glycocalyx called the slime layer is loosely attached to the bacterial cell and protects it from dehydration and loss of nutrients .
<h3>What is glycocalyx ?</h3>
The glycocalyx is a thick outer covering of the plasma membrane .it is of stands of sugars and proteins bound together ,the result is a thick ,sticky layer that helps cells stay put in environments with lots of physical stress .it is a glycoprotein and glycolipid covering that surrounds the cell membranes of bacteria ,epithelial cells and other cells .
Glycocalyx in humans : it is important to both vascular function and the digestive system . your blood vessels actually tiny tubes made of cells .the cells on the very inside of the tube are called endothelial cells and have to withstand the stress of blood flowing over them constantly. endothelial cells produce a glycocalyx which helps leukocytes and thrombocytes stick to blood vessel walls.it is the protective layer of the endothelial cells found in the lumen side of the vessels .
Glycocalyx in bacteria : most of the bacteria produce glycocalyx but some are expert .these expert bacteria make a very thick glycocalyx that helps them to adhere to each other and surfaces in extreme environments .bacteria use the glycocalyx to make thick films of bacteria in nature as well ,called a biofilm .
Learn more about glycocalyx here:
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Answer:
when cells are damaged , those cells are replaced by the process called cell division.
this fact support that cells arise from pre existing cells.(omni cellulae e cellulae) is given by Rudolf virchow. thus , he gave final shape to cell theory.
not as strong/dominent/common/potent/other words like that as dominent alleles. Didn't know how else to answer. Hope this helps.
Answer:
The alveoli are the sites of gas exchange; they are located at the terminal regions of the lung and are attached to the respiratory bronchioles. The acinus is the structure in the lung where gas exchange occurs. The sac-like structure of the alveoli increases their surface area.