Question

soft thallus without vascular tissue is seen in which
plant?
(b) Chara
(a) Lycopodium
(c) Cycas
(d) Riccia​

Answer 1

Answer:

c not confirm search on google

Answer 2

Answer:

both b and d

Explanation:

Cycas belongs to gymnosperms. Gymnosperms have a well-differentiated plant body with vascular tissues. They produce naked seeds.                                     Algae like Chara if we grow on land will die-off, because it's an aquatic plant especially grows in low oxygen high calcium and phosphate waters, it does not have vasculature or root system to transport water or food materials across the algal plant body, hence it will die-off on the land                                                                                                               Cycas often develop additional cylinders of vascular tissue, apparently formed from vascular cambia originating in the cortex. The result is a condition in which concentric rings of xylem and phloem are present, often two or three, but in exceptional cases, as many as 14.                                                                                                                                                                       Riccia is a bryophyte. Bryophytes are small plants, that remain close to the surface of earth. This is because they do not have vascular tissue. Absence of well developed vascular tissue means that water cannot be lifted to great heights.    

So the answer is b and d.