The first formed primary phloem is referred as ...$A$... The later formed primary phloem is referred as ...$B$...
Choose the correct combination of $A$ and $B$
The first formed primary phloem is referred as ...$A$... The later formed primary phloem is referred as ...$B$...
Choose the correct combination of $A$ and $B$
- A
$A-$ protoxylem; $B-$ metaxylem
- B
$A-$ protophloem; $B-$ sieve tube cells
- C
$A-$ metaphloem; $B-$ sieve tube cells
- D
$A-$ protophloem; $B-$ metaphloem
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