<span>Succession occurs because "organisms gradually change the environment". Organisms change the environment they live in after a disturbance or disaster in their habitat. Ecological Succession is a long-term process, it may take years to decades to change the ecological structure of an ecological community.</span><span />
Parenchyma is the answer because whereas the other two, xylem and phloem are vascular tissues, parenchyma is a packing tissue.
<span>Mandatory license plate revocation is effective against drunk driving. False</span>
