Bryophytes exhibit limited ability to colonize dry terrestrial environments compared to pteridophytes as:
They lack vascular tissues and need moisture.
Bryophytes (mosses, liverworts) have no xylem or phloem, so water moves only by diffusion over short distances.
Their male gametes (antherozoids) need a film of water to swim to the egg, so they depend on moist habitats — they are called the 'amphibians of the plant kingdom'.
Pteridophytes have true vascular tissue, which lets them grow larger and survive in drier places.
Bryophytes do not produce seeds or flowers and do not have needle-like leaves.
Hence, they lack vascular tissues and need moisture.
Which feature helps pteridophytes survive better than bryophytes in places with limited moisture?
Which tissue can be found in a fern stem cross-section, but is missing in Bryophyta and Thallophyta?
The seeds of gymnosperms are considered 'naked' as:
______ vascular tissue in plants contains specialised cells called sieve tube elements, and ______ is their primary function.
Which of the following is NOT a part of Xylem tissue?
Which of the following characteristics helps gymnosperms survive in cold and dry regions?
Which condition is most favorable for the growth of fungi?
A plant grows mainly in water and has a body that is not differentiated into true roots, stems, and leaves. To which group does it belong?
Which meristem is located at the base of certain plants and helps them regenerate after cutting?
Which of the following plant groups includes a green mat-like plant growing on a damp wall that lacks true roots and vascular tissues?
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Part of N 2cycle that is opposed to N 2fixation is:
Which among the following is the reproductive part of a plant?
Fibres (Adventitious) roots are found in :
In which Part of the flower does Meiosis take place ?