The great plains states and parts of the upper Midwest are collectively referred to as Tornado Alley due to the number of these severe weather events that occur each year.
The term Tornado Alley was framed in 1952 by U.S. Air Force meteorologists Captain Robert C. Miller and Major Ernest J. Fawbush. Tornado Alley is generally associated with the corridor-shaped region in the Midwestern United States where tornadoes commonly occur.
It typically includes regions of Texas, Oklahoma, Kansas, Nebraska, South Dakota, Indiana, Missouri, Iowa, Illinois, and Ohio. These states together with the state of Florida, are some of the parts of the US that are highly susceptible to tornadoes, nevertheless, tornadoes have been recorded in all the fifty states.
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Answer:
in contrast to normal cells,cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor /(cancer)
Answer:
The tiny muscles that make up the iris, known as the circular and radial muscles, relax and contract to maintain a fairly constant level of light entering the eye. In bright light, the circular muscles contract whilst the radial muscles relax. This causes the pupil to constrict and less light enters the eye.
Explanation:
Water typically diffuses in and out of cells depending on the concentration of solutes (other gunk not water) in both the cell and the external environment. Osmosis (the diffusion of water), happens from where the solute concentration is lowest to where the solute concentration is highest (or more sensibly, water travels to dilute the solute; so imagine if a cell with a lot of gunk in it swims into pure water, water will start to move into the cell).
