Botany and Plant Science

Oleander has 6-fold symmetry.

Zygomorphic flowers can be divided into two halves, only by a vertical section.

In an embryo, the hypocotyl is the region below the cotyledons, and the epicotyl (embryonic shoot) is the region above the attachment of the cotyledons.

The inflorescence of a coconut palm is a spadix, which is a spike with a fleshy axis enclosed by a large bract called a spathe. Because it is branched, it is specifically classified as a compound spadix.

This is the correct option as this is not an adaptation of cacti plants. Stems become spongy so as to store water.

Petal is a part of flower and arm is a part of body.

Petiole is modified into tendrils in clematis.

The thick and fleshy part of onion, which stores water and food, are scale leaves.

The leaf apex is modified into a lid to attract the insects.

In bipinnately compound leaf of parkinsonia, the secondary rachis gets modified to phyllode.

In opuntia, the minute leaves of the axillary bud are modified into spines.

In Bignonia, the three terminal leaflets get modified into claw-like hooks which help in climbing.

Guava has opposite superposed phyllotaxy.

Phyllotaxy is the arrangement of leaves on the stem and branches.

In this type, one pair of leaf is placed at right angle to the next pair of leaf.