Question

Flower is a modified shoot as
A) Thalamus may elongate to show internodes.
B) There is aggregation into inflorescence.
C) It bears essential organs.
D) It may have epicalyx.

Answer 1

Flower is formed in shoot apical meristem by division. And it often consists of internodes and nodes.

Complete answer:
First we should know about flowers to answer this question. The flower is a specialised portion of a plant containing reproductive organs, applied only to angiosperms. It is possible to think of a flower as a modified, short, compact branch containing lateral appendages. Flowers grow from buds, like twigs, and the basic floral components (sepal, stamen, petal, and carpel) are simply much modified leaves. A normal flower is the concentric arrangement of these parts connected at their base to the receptacle, the stem's tip.
Now, let us find the solution from the options-
The enlarged and condensed axis is the thalamus of a flower. It has nodes and internodes that are very short. The floral whorls at the nodes are bear by it. In a definite order, these whorls are arranged. Therefore, the flower is called a modified shoot.
The arrangement of flowers on the axis of the flower is referred to as inflorescence. Two main types of inflorescences, cymose and racemose, are classified based on whether the apex is turned into a flower or continues to expand. Therefore, it does not explain the flower as a modified shoot.
The ovaries and stamens are referred to as important parts of the flower, the accessory parts are the petals and sepals. Among the many families and plant orders, the number and organisation of floral organs vary considerably and are used in plant classification. Therefore, it does not explain the flower as a modified shoot.
Epicalyx is one or two whorls located at the base of the calyx of bracteoles. Therefore, it does not explain the flower as a modified shoot.

Thus, the correct answer is option A Thalamus may elongate to show internodes.

Note: A modified shoot is considered to be the flower since the flower has close nodes and internodes to the vegetative shoot. But the inter node is condensed and there are various numbers of appendages originating from the nodes.