Ptolemy was an astronomer and mathematician. He believed that the Earth was the center of the Universe. The word for earth in Greek is geo, so we call this idea a "geocentric" theory.With the development of the heliocentric model by Nicolaus Copernicus in the 16th century, the Sun was believed to be the center of the Universe, with the planets (including Earth) and stars orbiting it.
Answer: The capsid is the tough shell made of protein.
Explanation: One of the most unusual aspects of virus particles is the absence of all organelles and other smaller structures. Whereas cells have many kinds of organelles, viruses consist of only two parts: a nucleic acid core made of DNA or RNA, and a tough, potective protein shell.
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It can depend on the nature of the descriptions and the source for the job analysis.
As light intensity increases, the rate of photosynthesis increases, whereas a decrease in light intensity decreases the rate of photosynthesis, because light is a necessary factor for photosynthesis
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