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Trunk

trunk

(Science: botany) The main stem or body of a tree, considered apart from its roots and branches.


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Why does the floem gets affected when the bark gets damaged?

... bundles, and eventually are used to create the dead heartwood at the centre of the trees. This means the phloem are always on the outside the trunk, just beneath the periderm (bark). If you take off the bark, you are likely to damage the phloem as well. The phloem transport glucose from where ...

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by Babybel56
Fri Feb 28, 2014 9:27 am
 
Forum: Botany Discussion
Topic: Why does the floem gets affected when the bark gets damaged?
Replies: 2
Views: 1794

How do cockroaches and mosquitoes know the difference betwee

... it seems that some insect larvae can even perceive the intensity of light from organs in the trunk, although I do not know if it is the case for cockroaches and mosquitoes..

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by dgm
Mon Nov 04, 2013 1:33 pm
 
Forum: General Discussion
Topic: How do cockroaches and mosquitoes know the difference betwee
Replies: 2
Views: 1163

spinal nerves

I have some question on spinal cord and its nerves: 1. Are in sympathetic trunk sympathetic ganglia? 2. Whic are neurotransimters in sensory gangia?(If any ?) 3. What exactly does it mean that some nerve has contribution from for example:C5-C8, T1?(anatomicaly) ...

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by kapital
Tue Jan 08, 2013 10:54 pm
 
Forum: Human Biology
Topic: spinal nerves
Replies: 2
Views: 1998

What is responsible for plants' branches having bends?

Oooh. So the trunk is straight because the sun's movement doesn't really have enough of an impact to make it bend one way, but once the tree is large enough to have a network of branches, the whole shade thing comes into play and ...

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by animus
Sat May 19, 2012 10:58 pm
 
Forum: Botany Discussion
Topic: What is responsible for plants' branches having bends?
Replies: 3
Views: 2391

What is responsible for plants' branches having bends?

I would say yes, auxin is responsible for that. Furthermore, I would think that most tree trunks are straight because the sun is always moving, and therefore it isn't advantageous for what will later be the trunk to grow in any direction since the sun's location isn't ...

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by plasmodesmata11
Wed May 09, 2012 9:40 pm
 
Forum: Botany Discussion
Topic: What is responsible for plants' branches having bends?
Replies: 3
Views: 2391
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