All statements are truly given below

• Creeper is the type of plant that grows completely on the ground.
  
• There stem is completely fragile and that is unable to stand erect and does not support the weight of the plant.

Pea plant is a climber that uses tendrils to climb the support as it has very weak stem and can not stand by its own so they either climb o another plant , wall or just stick to them by holding it.

Climbers are meant to be more advance than creepers as unlike them creepers evolve themselves and modify their parts to form special structure known as tendrils and climb up but creepers grow on ground and are not able to support their weight .

A culm is the aerial (above-ground) stem of a grass or sedge. It is derived from culmus, the Latin word for "stalk", and it originally referred to the stem of any type of plant. So bamboo have a culm.

The bulb is a modification of underground stem. The bulb is divided into two categories: 1) Tunicated 2) Scaly/Imbricate. 

Pisum sativum is a climber because it has a weak stem which needs support for growing upright. It has a soft green pliable stem which when grown in farms are given enough support system.

1. The caudex is the axis of the plant of palm or fern that has a stem as well as root.
2. The excurrent stem has the axis that is prolonged to form undivided main stem or trunk as in conifers.
3. Deliquescent is the branching in which stem is not figured out as in deciduous trees.
4. Culm is an aerial stem of grass.

Climbers are said to have a weak stem and cannot stand by their own so they evolve a mechanism and mostly modify either their leaves or part or leaf that helps them to climb the other plant or can attach with a wall or any other support.

Creepers are weak plants that grow on ground with the help of fiber like roots that arise from the base of the stem.

Erect, unbranched stem with distinct nodes and internodes are called culm. Bamboo is a perennial evergreen stem which is characterized by a jointed stem called culm. So, the correct answer is 'Bamboo'.

In the dicotyledonous roots, the protoxylem is located near the periphery of the vascular cylinder. It means away from the centre (exarch condition) and the metaxylem is towards the centre. In the dicotyledonous stem, the protoxylems are located near the centre of vascular bundle means endarch condition and the metaxylem are away from the centre. So, anatomically fairly old dicotyledonous root. One can distinguish it from the dicotyledonous stem by its position of protoxylem.

So, the correct answer is 'Position of protoxylem'.

The correct option is A.

A disc-like stem is found in onion. This type of stem is called the bulb. It bears fleshy scale like leaves and at the terminal end it shows the presence of terminal bud.

Each year, the tree forms new cells, arranged in concentric circles called annual rings or annual growth rings. These annual rings show the amount of wood produced during one growing season. As the stem grows, complete ring called the cambial ring is formed. Cambial ring leads to the formation of secondary xylem and secondary phloem. 

Cork cambium is a tissue found in many vascular plants as part of the epidermis. The cork cambium is a lateral meristem and is responsible for secondary growth that replaces the epidermis in roots and stems. It gives rise to cork outside and secondary cortex inside.