MCQ
Ivan Pavlov performed experiments on:
- ASimple reflexes.
- BConditioned reflexes.
- CCardiac reflexes.
- DOrigin of life.
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Select appropriate choice for the blanks $A, B$ and $C$ to complete the given $NCERT$ statement
$(i)$ Have an independent life.
$(ii)$ Organs development.
$(iii)$ Perform metabolic activity for life.
$(iv)$ Tissue constitute