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a lateral meristem in the vascular tissue of plants. The vascular cambium is the source of both the secondary xylem (inwards, towards the pith) and the secondary phloem (outwards), and is located between these tissues in the stem and root. A few leaf types also have vascular cambium.
the membrane that surrounds the nucleus. It is similar in structure and function to the cell...
a prolonged period of low rainfall which has a negative effect on plant, animal and human life...
plant-like organisms that live and grow in water; they make their own organic food by the...
a layer of ozone gas which occurs naturally in the upper atmosphere, and protects life by...
the nerve cells that transmit nerve impulses towards the central nervous system from the...