I think the correct answer from the choices listed above is option C. The fields that are created by an electron when it moves are gravitational, electric, and magnetic fields. All fields are being produced by such movement. Hope this answers the question.
The vascular cambium produces secondary phloem and xylem tissue.
<span>Vascular cambium, a plant tissue located between the xylem and the phloem in
the stem of a vascular plant. It is also the source of both secondary xylem growth
and the secondary phloem growth. Vascular
cambium is usually found on dicots and gymnosperms not on monocots which
usually lack secondary growth. It does not transport water, dissolved food or
minerals by plants. </span>
<span>Vascular cambia are cylinders of unspecialized meristem cells which
divide to make new cells which
specialize to form secondary vascular tissues.</span>
Because if something goes wrong there can be mutations and cause the rest to the replication to mutate I believe
Theres your answer look at the photo