[Q]: What is the missing first step of the following process: - An area of low pressure causes rotation - Several thunderstorms come together around this area - The storm is fed by rising air from warm ocean water evaporating - When the wind speeds reach 74 mph the storm is considered a hurricane.
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[A]: Thunderstorms form over the ocean

[Q]: What is the missing first step of the following process: - They secrete digestive juice 'externally' into the small intestine - There are enzymes for breaking down fats, proteins , and carbohydrates - Digestive juices flows from the pancreas through an excretory duct into the small intestine - When the blood sugar levels rise, as they might after a meal, insulin is released - When blood sugar levels are too low, the pancreas releases glucagon into the bloodstream -
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[A]: Over 99% of the exocrine pancreas cells produce digestive juices

[Q]: What is the missing first step of the following process: - Attach a rocket - Add rocket fuel - Launch rocket - Satellite goes into orbit.
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[A]: Build a satellite

[Q]: What is the missing first step of the following process: - The receptors will lock onto a target cell using these chemical receptors on the surface, which docks onto the cell surface - The receptors then go into the cell - The receptors use it like a factory - The receptors take it over and make it produce thousands or in some cases millions of copies of new viruses - The copies come streaming out of the cell - The copies infect other cells to make more viruses, or they escape from the body and infect a new victim -
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[A]:
The flu virus has receptors, which are like viral Velcro, on the surface of the virus particle