MCQ
The cambium which produces cork is known as
- APhelloderm
- ✓Phellogen
- CPeriblem
- DPeriderm
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$II.$ Phloem in the angiosperm is composed of sieve tube elements, companion cells, phloem parenchyma and phloem fibres
Identify which of the following statement is correct and select the correct option
$R$- These factors are regulate the activity of enzyme