The property of polarity of the water and cohesion could be the actual responsible for the beading up of water on the surface of leaves.
What is cohesion?
Cohesion, also known as cohesive attraction or cohesive force, is the action or quality of like molecules sticking together and being attracted to one another (from the Latin cohaesi, "cohesion, unity"). The uneven distribution of surrounding electrons that results when molecules are close to one another creates electrical attraction, which can keep a small structure like a water drop in place. This attribute of a substance is caused by the shape and structure of its molecules. Surface tension is made possible by cohesion, resulting in a "solid-like" state that allows for the placement of light or low-density materials.
It turns out that the tendency of water molecules to attract one another, or the tendency of cohesion, is what causes surface tension. The "lowest energy state," or the state in which the atoms in the molecule are utilizing the least amount of energy, is when a water drop takes on its natural form. This condition of water occurs when a water molecule forms a sphere or ball and is encircled by other water molecules on all sides. On Earth, gravity flattens this perfect sphere into the form of a drop that we can perceive.
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Platyhelminthes have the following important characteristics: They are triploblastic, acoelomate, and bilaterally symmetrical. They may be free-living or parasites. The body has a soft covering with or without cilia.
They all develop gills, slits and tails
Answer:
The aorta from the heart supplies oxygenated blood to the body, divide into two coronary arteries, which supplies the blood to the muscles of heart. The person, who suffers from the coronary heart disease gets a waxy deposition in the coronary arteries. This deposition hampers the supply of blood to the heart.
This will affect the functioning of heart as proper supply for efficient pumping has not met. The person when take rest, the supply to the heart is met. So, he is having a partially blocked coronary artery. In case, the proper treatment is not taken, waxy deposition increases and coronary artery no longer functions. This may lead to heart attack.