Answer:
red blood cells (RBCs) misfolding and convert in sickle shapevfrom the donut with out hole shape.
<span>When the microscope was invented, it helped the cell theory. This invention allowed scientists to see that everything was made up of cells and see what cells do. They needed this invention in order to see that cells existed and study them more in depth.</span>
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➷ Waves are commonly caused by wind. However, tides are caused by the gravitational attraction of the sun and moon on the oceans.
➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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