Cell division is the process essential for growth and repair in multi-cellular organisms.
Injury to the tissue can activate surrounding cells to undergo cell division with the help of mitogens. Mitogens are the chemical substances which help in escalating mitotic divisions in the cells.
They act by activating the signal-transduction pathway which involve mitogen-activated protein kinase (MAPK).
Other possible manner could be the loss of density which could lead to the inactivation of contact inhibition. As there is a loss of cells during the injury, it makes an empty space which could also trigger or activate surrounding cell to start cell division.
In addition, at injury site the flow of blood also increases to transport various nutrients, clotting factors, growth factors etc. These increased nutrition and growth factors also speed up the process of mitosis.
Answer:
This question has to be made from your memories, I can't falsify your memories without personal information and im not going to ask you for that, so i can only answer the last one. For the last one you could say that you are a sweet tooth and happiness came in the form of sugar
Explanation:
The number of electrons in the outer shell determine its reactivity or tendency to form chemical bonds with other atoms.
I'm fairly sure it would be windward and leeward. So C
