External signal that controls the cell cycle

Biology

2 answers:

Nesterboy [21]2 years ago

7 0

Answer:

physical and chemical signals

Explanation:

zheka24 [161]2 years ago

4 0

Answer:

External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells.

Explanation:

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Explanation:

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