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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.
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From Google
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white for the first one and brown for the secound one
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Answer:
A. Outer Membrane B. Peptidoglycan C. Cytoplasmic Membrane
Explanation:
I can't really give an explanation for this one but if you look up gram negative bacteria and go to images you can find a photo that is very similar to the one you show that has labels.
That is false The higher the elevation, the faster the weathering will occur.
Polymerase chain reaction to amplify the DNA would be the technique used in the blood lab.