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18 Plants-Secondary Growth - 02/18 2 Label the parts of the...

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SI Leader: Anita Vijapura Spring 2010 BSC2011 02/18 1 Plants: secondary growth Secondary growth is growth in ______________ produced by ______________________ and occurs in _________________________________________________. Primary and secondary growth occurs simultaneously but in different regions. Explain! Q A SIGN IS HAMMERED INTO A TREE 2M FROM THE TREE’S BASE. IF THE TREE IS 10M TALL AND ELONGATES 1M EACH YEAR, HOW HIGH WILL THE SIGN BE AFTER 10 YEARS? The secondary plant body consists of the tissues produced by the: 1) a. Develops from: b. Function: 2) a. Develops from: b. Function: Secondary growth occurs in which species? Thus, the arrangement of vascular bundles is _____________; whereas in ____________ the arrangement of the vascular bundles is ____________. The vascular cambium has interspersed regions of cells: 1) a. Function: 2) A. Function:
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SI Leader: Anita Vijapura Spring 2010 BSC2011 02/18 2
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Unformatted text preview: 02/18 2 Label the parts of the primary plant body that is formed by the ___________ meristem. Is this part of the stem more likely young or old? Vascular cambium initials: ___________ initials form: 1) A. Where? 2) A. Where? ___________ initials give rise to: 1) 2) What effect do these changes have on the diameter of the vascular cambium? What effect does this change in the diameter have on the tissues external to the cambium? So, what happens? Now, what happened to the cortex? Why does this affect the formation of new cork cambium? So, what happens now? Label and describe. Label and describe. SI Leader: Anita Vijapura Spring 2010 BSC2011 02/18 3 Heartwood VS Sapwood HEARTWOOD SAPWOOD XYLEM OR PHLOEM YOUNG OR OLD INNER OR OUTTER ACTIVITY Q A TREE CAN SURVIVE EVEN IF A TUNNEL IS CUT THROUGH ITS CENTER. HOWEVER, REMOVING A COMPLETE RING OF BARK AROUND THE TRUNK WILL KILL THE TREE. EXPLAIN WHY?...
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