The answer is A because LI-6 and Li-7 are the same except that Li-7 contains an extra neutron
Answer:The closer to the human cytochrome c sequence (identity then similarity of amino acid sequence) the more related the species to humans.
Explanation:
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>
A coral reef is made of<span> thin layers of calcium carbonate. </span>Coral<span> polyps form a living mat over a calcium carbonate skeleton.</span>
Four abiotic factors in a prairie ecosystem would be soil, climate/temperature, water, and oxygen. Hope this helps!
