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The largest contrast in temperatures between cells, which forms jet streams, occurs between the Ferrel and Polar cells, and especially during Winter. This forms a strong polar jet stream with high-speed that can exceed 120 km/h.
Explanation:
There are usually 3 circulating air masses from the equator to the poles on either hemisphere. These cells are called the Hadley, Ferrel and Polar cells. The polar jet stream occurs between the Ferrel and Polar cells while the subtropic jet stream occurs between the Ferrel and Polar cells. These jet streams occur due to the temperature difference between the air masses of the cells.
These jet streams are high altitude narrowing blowing winds. They occur in the tropopause and blow at speed of 120 to 250 mph.
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There aren't enough oxygen molecules in the air are higher altitudes
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what precautions must be taken while taking antibiotics?
Answer:
1. Take antibiotics only after consulting a doctor.
2. Complete the dose of the antibiotic as prescribed by doctors.
3. Not taken empty stomach.
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Cellulose is the main substance found in plant cell walls and helps the plant to remain stiff and strong. Humans cannot digest cellulose, but it is important in the diet as a source of fibre.
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1) Muscle Cell*myosin filament: changes shape and pulls on and releases actin filament allowing movement*If the myosin filament was missing or injured, it would be cause difficulty in movement2) Flagellum*Dynein arms: uses energy from ATP to "grab" the attached droplet allowing a wave like movement when pulling the droplets together* If the dynein arms was missing or injured the flagellum would have no possible way of moving causing it to stuck in mid-air
