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One basic internal signal that triggers Cell division is 'the size of the Cell'.

External signals that do this exist...

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What are internal cell regulators?

Internal cell regulators are proteins that respond to changes within a cell.For example, a normal cell will not enter the mitosis stage of cell division till the entire DNA is replicated. This check is regulated by a protein within the cell. This protein is the internal cell regulator.


Is a bluegill internal or external?

Bluegills have internal fertilization, where the male releases sperm inside the female's body to fertilize her eggs.


What are external regulators?

External regulators are proteins that respond to events outside the cell. These proteins direct cells to speed up or slow down the cell cycle, like traffic lights. For example, growth factors are one of the most important external regulators, and they stimulate the growth and division of cells. These differ from internal regulators in the fact that they respond to events inside the cell. Internal regulators allow the cell to proceed only when certain processes have happened inside the cell. Hope this helps! : )


What is the fluid link between the external and internal environment?

The fluid link between the external and internal environment is the plasma membrane of cells. It acts as a selectively permeable barrier that regulates the passage of substances in and out of the cell, maintaining the cell's internal environment while interacting with the external environment.


Organisms that do not regulate their internal conditions?

Organisms that do not regulate their internal conditions are called poikilotherms. They rely on external sources to maintain their body temperature, such as by moving to warmer or cooler areas. Examples include reptiles, amphibians, and many invertebrates.

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