A student wrote the following response to the question: what are elodea plants made of? Elodea plants are made of cell walls, Cytoplasm, and chloroplasts.
His friend told him that he forgot to include the levels of complexity.
Improve the first students response, keeping in mind his friend's suggestion

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

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