A jet stream forms high in the upper troposphere between two air masses<span> of very different temperature. The greater the temperature difference between the air masses, the faster the wind blows in the jet stream.
</span>.
.
So "Differences in temperature between two air masses" is the answer
Answer:
white blood sells
Explanation:
they in ur blood and helps fights off diseases and heal cuts
Firts you begin with the separation of the messenger (RNA) from the (DNA) template and end with the release of the protein at the plasma membrane.