1.

1. The largest region of the brain is ———–. 2. A point of contact between two neurons is ———–. 3. ———– phytohormone is responsible for cell elongation and differentiation of shoots and roots. 4. Thyroxine is responsible for ———–.

Answer»

1. cerebrum 

2. synapse 

3. Auxin 

4. General growth rate and metabolic rate



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