<span>When jumping into water we notice resistance. this resistance is caused by water's
surface tension. This caused by water's great cohesiveness.
Cohesion in water is a property of water that makes its molecules attracted to each other. A water molecule is made of one oxygen atom bonded to two hydrogen atoms. The molecule has an unbalanced charge, with the oxygen side being slightly more negative and the hydrogen side being more positive.</span>
Heterocyst-forming Cyanobacteria differentiate highly specialized cells to provide fixed nitrogen to the vegetative cells in a filament.
The brain requires blood flow to function properly, and cutting off blood flow to some of the brain's most important functions can be extremely harmful. Paralysis, sensory deficits, or even a stroke could result from a blockage of blood flow in the anterior cerebral arteries.
<h3>What causes a stroke?</h3>
A blocked artery (ischemic stroke) or a blood vessel leak or burst are the two basic causes of stroke (hemorrhagic stroke). Transient ischemic attacks (TIAs), which are brief interruptions in blood supply to the brain that don't persist long, can occur in some persons.
<h3>What happens when you stroke?</h3>
Depending on where in the brain the stroke occurs and how many brain cells are lost, the effects of a stroke might vary. Paralysis, trouble swallowing or communicating, memory loss, discomfort, emotional changes, and behavioral problems can all be brought on by a stroke.
<h3>What are the 4 signs of stroke?</h3>
- Face, arm, or leg weakness that appears out of nowhere (especially on one side of the body).
- abrupt difficulty speaking or understanding speech.
- sudden problem with eyes' eyesight.
- sudden dizziness or difficulties walking,
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