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DNA is the molecule which determines our eye colour, enzyme production and body structure.
The first single celled life form appeared on earth roughly about 3.5 billion years ago
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<em>The Moon lacks an atmosphere, and the small amount of water that is present is "buried" in the polar areas. Finally, there is no life on the Moon. The major factor which does change the Moon's surface is the impact of meteoroids, forming craters. ... The surface of the Moon is very old, compared to the Earth.</em>
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Answer:
The sporophyte body comprises a long stalk, called a seta, and a capsule capped by a cap called the operculum. The capsule and operculum are in turn sheathed by a haploid calyptra which is the remains of the archegonial venter. The calyptra usually falls off when the capsule is mature.
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A genome is composed of one or more DNA molecules, each organized as a chromosome.
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