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19.Chemical Coordination and Integration
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Which of the following is an emergency hormone
A
Pituitary
B
Prolactin
C
Progesterone
D
Adrenalin
Solution
(d) Adrenaline whip up metabolism to prepare animal to face special physical or mental stress.
These cause contraction of spleen to squeeze out the reserve blood as well as stimulate then the breakdown of liver and muscle glycogen to provide more glucose for respiration.
Standard 11
Biology
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