Question

Which of the following is a characteristic feature of ferns?
a. they have male and female cone
b. they have needle shaped leaves
c.they have rhizoids
d. their plant body is differentiated into root, stem and leaves

Answer 1

Hint: A fern is a type of vascular plant (one with xylem and phloem) that reproduces through spores rather than seeds or flowers.

Complete answer:
Among the options, we can easily find that the correct option is “d” as the plant body of ferns are differentiated into root, stem and leaves.
The root, stem, and leaves make up the fern's body. This tissue aids in the transport of water and other materials from one section of the plant to another. These plants' reproductive organs are not visible. Marselia and ferns are two examples. A sporophyte is the plant's shell. It is divided into three parts: the true stem, leaves, and roots.
Actually, in most ferns, the stem is an underground rhizome. Some primitive ferns have a tree-like above-ground stem. Tree ferns, such as Cyathaea and Celeotium, are examples. A tree fern is similar to a small palm tree. It has the potential to grow to a height of twenty metres. Roots are a risky business.
The big leaves are referred to as fronds. They're usually elegant. Simple or pinnately compound leaves are also possible. The lamina of a pinnately compound leaf is divided laterally into leaflets. Actually, it may be uni-pinnate (leaflets borne directly on rachis, which is a continuation of petiole), bi-pinnate (leaflets borne on main branches of rachis), or tri-pinnate (leaflets borne on branches of rachis) (thrice pinnate, leaflets borne on tertiary axes or secondary branches of rachis). The apical meristem, or rising stage, is present in leaves, but it ceases to function once they reach maturity.
When young leaves are coiled in the shape of a watch spring, they exhibit circinate ptyxis. This coiling shields the rising point, which eventually settles in the middle. Veins branch dichotomously without establishing interconnections in the free furcate venation of leaves or leaflets.

Note:
Fern roots are non-photosynthetic underground structures that suck up water and nutrients from the soil. They're always fibrous, and their structure is very similar to that of seed plants' roots.