MCQ
Phellogen and phellem respectively denote.
- ✓Cork cambium and cork.
- BCork and cork cambium.
- CSecondary cortex and cork.
- DCork and secondary cortex.
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$(a)$. Balance of the body
$(b)$. Circadian rhythm of the body
$(c)$. Human behaviour
$(d)$. Functioning of heart and kidneys