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Biology CBSE Live product
Class 10 (2025-26)
Control and coordination
Revision I - Control and coordination
1.
Brain - Functions
Question:
3
m.
1.
What is the term for the physiological response of plants to the duration of light and darkness, particularly in relation to flowering?
photo periodism
photo respiration
photo oxidation
photo tropism
2.
Brain stem is formed by the union of ________.
optic lobes
cerebellum with optic lobes
mid brain, ponsvarolli and medulla oblongata
corpora striate
3.
The total number of spinal nerves in humans is ________.
21 pairs
31 pairs
23 pairs
12 pairs
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