Q6 of 62 Page 191

What does role brain play during reflex action?

Brain receives the information from different neurons which are connected in spinal cord and then after thinking process brains sends signals to muscles for further movement.


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4

Where is growth hormone synthesized in case of: (a) man (b) plants?

 5

Name one plant hormone which:

(a) Retards growth burning extremely dry season?


(b) Is present in greater concentration in fruits and seeds?

 7

What are phytohormones?

 8

Expand ABA, giving its function.