The tendrils of pea are

(1) Example of stem modification which are useful in climbing

(2) Example of leaf modification for climbing

(3) Example of leaf modification for defence

(4) Example of stem modification for defence

(1) Thorn in citrus

(2) Thorn in Bougainvillea

(3) Spine in cactus

(4) Spine in pea

(1) Onion

(2) Garlic

(3) Opuntia

(4) Both 1 and 2

(1) Modified stem

(2) Modified leaf

(3) Modified stipule

(4) Modified roots

(1) Has modified shoot

(2) Has modified root

(3) Is an insectivorous plant

(4) All of these

(1) Modified leaf

(2) Modified shoot

(3) Modified petiole

(4) Modified pedicel

(1) Internodes do not elongate

(2) Axis gets condensed

(3) Shoot apical meristem changes to floral meristem

(4) All of these

(1) Apex produces different kind of floral appendages

(2) These appendages are anterior

(3) Successive nodes have no leaves

(4) When a shoot tip transforms into a flower, it is always solitary

(1) Arrangement of leaves over stem

(2) Arrangement of flower over floral axis

(3) Arrangement of flower over pedicel

(4) Arrangement of leaves over nodes

1. The growth of pedicel

2. The growth of thalamus

3. The growth of main axis

4. The growth of leaves