to tell the cell when to perform certain fucntions such as cell division and DNA replication
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Internal regulators are mechanisms within an organism that control their biological processes, such as hormones that maintain homeostasis. External regulators are environmental factors outside the organism that influence its biological responses, like temperature or availability of nutrients. Both internal and external regulators play key roles in determining an organism's growth and development.
An internal regulator is a protein that responds to events that occur within the cell.
mitoconderia
Proteins called internal regulators and external regulators control the cell cycle. Internal regulatory proteins allow the cell cycle to proceed only when certain events have occurred in the cell itself. External regulatory proteins direct cells to speed up or slow down the cell cycle.
External regulators refer to factors or entities outside of a system or organization that impose controls, guidelines, or oversight on it. These regulators are typically government agencies, industry bodies, or standard-setting organizations that monitor and enforce compliance with rules and regulations to ensure fair practices and protect the interests of individuals or the public.
Internal
Homeostasis is internal. It refers to the body's ability to maintain a stable internal environment regardless of external influences.