The #1 biology rule is that structure equals function. One part of an organism is designed to to a specific job well because of its function. For example, the heart is good at pumping blood because it has veins, arteries, and valves to assist it. The lungs would not be good at pumping blood because they lack these specific features. What a body part consists of determines what job it does and how well it does that job.
Neopolitan ice cream refers to an ice cream compound, that is, it comprises an amalgamation of three distinct elemental ice cream flavors: vanilla, chocolate, and strawberry in equal ratio.
If one wants, then one can distinguish the three flavors from each other with the help of a knife. This analogy can permit one to witness that how the elements can be combined with each other to produce new components or dissociated into their elements.
Answer:
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"Plant cells have certain distinguishing features, including chloroplasts, cell walls, and intracellular vacuoles."
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In the given case, most probably the top layer is of oil.
As oil is not soluble in water, it will float on the top of the water surface, in the given case it is the beaker. The oil will always float on top of the water, as it is less dense in comparison to water. The water and oil do not mix as the molecules of water are more fascinated with each other than in comparison to the molecules of oil.
As water is polar and oil is nonpolar, their molecules are not attracted to each other.
Chemical energy is stored in the bonds of atoms and molecules.