Free Plant Kingdom (Daily Quiz: 13) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Answer: (d)

Mosses along with lichens are the first organisms to colonise rocks and hence, are of great ecological importance. They decompose rocks making the substrate suitable for the growth of higher plants. Since mosses form dense mats on the soil, they reduce the impact of falling rain and prevent soil - erosion.

Answer: (d)

Transfusion tissue is a specialized tissue present on either side of midrib in between the palisade and spongy tissues of the leaf of Cycas and also in Pinus leaf at the sides of the sclerenchymatous region. It is made of horizontally arranged tracheids. These supply water and minerals to mesophyll tissue upto margins so that the mesophyll cells can carry out photosynthesis. It is of two types primary transfusion tissue present next to the midrib bundle and secondary transfusion tissue that runs upto margins of the leaf. In Pinus it consists of tracheids and albuminous cells.

Answer: (d)

In order to colonize the land, the plants needed to acquire the mechanisms to prevent desiccation of tissues and the ability to screen ultraviolet radiation. Because several successful groups of plants lack mechanisms for moving water throughout the plant.

Answer: (c)

Cephaleuros virescens is a member of class chlorophyceae and causes red rust of tea leaf (Thea sinensis).