Answer: As scientists started improving on the microscopes, the more they got to observe the cells in depth. Compound light microscope uses visible light to produce a magnified image and doesn't allow it to scatter.
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True blue is a rare color in plants. There are some flowers with blue hues but foliage plants tend to be more gray or green than blue. Green- and gold-colored foliage plants are everywhere. This plant is considered the grandfather of all blue-leaved hostas, and its thick, rounded, corrugated blue leaves develop into a 4-foot-wide by 2-foot-tall clump.
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Answer:the decline of lichens is an important indicator of an imbalance in the ecosystem. this research can help system ecologists predict how pollution will affect the entire ecosystem
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