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ELEN [110]
3 years ago
7

What helps overcome gravitational pull when water travels upward from roots to leaves?

Biology
1 answer:
Nikitich [7]3 years ago
5 0
What help gravitational pull is Actually it's same like drinking coke through straw. Transpiration generates a sucking effect. This is called as transpiration pull and it helps in overcoming the gravitational pull downwards.
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Since the symphatetic nervous system is responsible for the crucial "fight-or-flight" response of our body, it has a more dramatic effect on the muscle contraction. Norepinephrine, being a part of the symphatetic nervous system, should result in a more drastic change in contractile force.

I hope this answer helps.

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