Answer:
because of the constant change of the earths surface
Explanation:
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In this, the DNA is kept in the nucleus<span>, which is </span>enclosed by its own membrane<span>. An organelle in a plant cell that uses the energy from sunlight to make sugar. When a cell and </span>its<span> organelles are organized to allow it to do a specific job. An organelle that releases </span>stored<span> energy, which comes mostly from sugars.</span>
DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.
