Draw and identify different elements of phloem.

(N/A) Phloem is a complex permanent tissue that transports food in plants. It is composed of four main types of elements:
$1$. Sieve tubes: These are tubular cells with perforated walls (sieve plates) that facilitate the transport of food.
$2$. Companion cells: These are specialized parenchyma cells that assist the sieve tubes in their functions.
$3$. Phloem parenchyma: These are living cells that store food and provide structural support.
$4$. Phloem fibres: These are dead,thick-walled sclerenchyma cells that provide mechanical strength to the plant.