When a cell is preparing to divide, it should not manufacture a protein that will cause it to divide early. The need for cells to follow a certain order during division is the reason cells- A) Regulate gene expression
B) divide very slowly
C) Do Not manufacture enzymes to divide proteins
D) signal protein Not to stimulate cell division

the answer to you question is   jet streams

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since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.

the answer is: the „power stroke“ step.

muscle contraction can be divided into a few steps:

1. the release of ach (acetylcholine) in the synaptic cleft, binding of ach for its receptor and consequently opening of the ca channels.

2. the release of ca, binding of ca for the troponin

3. troponin shifting the tropomyosin, which was blocking the active site on the actin

4. myosin heads attaching to actin by breaking down atp to adp+ pi

5.   formation of the ‘cross-bridge’ on the active site of the actin filament by myosin head

6. “power stroke” -the cross bridge pulls actin, which slides over the myosin

9.     7. the release of adp completes the cross-bridge movement and atp attaches to myosin, breaking the actin-myosin cross bridge.