bryophytes

Question 1

bryophytes include

Answer 1

liverworts and mosses

Question 2

liverworts shared common characteristics with

Answer 2

mosses

Question 3

amphibians of plant kingdom

Answer 3

bryophytes

Question 4

why bryophytes are called amphibians of plant kingdom

Answer 4

they live on land but requires water for sexual reproduction

Question 5

bryophytes are more differentiated then algae in terms of

Answer 5

prosteateor erect thallus like attached to substratum with the help of rhizoids they are unicellular but gametes are multicellular their main body is haploid they lack true roots stem and leaves but posses root like stem like leaf like st they are gametophytic

Question 6

male and female st

Answer 6

antherodium and archegonium

Question 7

instead of zygote which st undergoes reduction division

Answer 7

sporophytes

Question 8

sporophytes derive nutrition from

Answer 8

gametophytes

Question 9

moss, provide peat that have long been used as
fuel, and because of their capacity to hold water as packing material for
trans-shipment of living material.

Answer 9

sphagnum

Question 10

first organism to colonise rocks

Answer 10

mosses and lichens

Question 11

plant body of liverworts are

Answer 11

thalloid like

Question 12

asexual reproduction in liverwort is by

Answer 12

fragmentation of thalli or by formation of sp st called gemmae

Question 13

gemmae of mercantia are

Answer 13

green multicellular asexual buds localised in small recepticle called gemmaecup

Question 14

during sexual rep male and female sex organs of liverworts are produced in

Answer 14

same or different side of thalli

Question 15

in mercantia after meiosis spore germinates into

Answer 15

gametophytes

Question 16

spores of liverwort are differentiated into

Answer 16

foot seta capsule

Question 17

The predominant stage of the life cycle of a moss is the

Answer 17

gametophyte

Question 18

gametophyte has two stages

Answer 18

The first stage is the protonema stage, which
develops directly from a spore. It is a creeping, green, branched and
frequently filamentous stage. The second stage is the leafy stage, which
develops from the secondary protonema as a lateral bud. They consist of
upright, slender axes bearing spirally arranged leaves. They are attached
to the soil through multicellular and branched rhizoids.

Question 19

mosses bears sex organ in which stage

Answer 19

secondary leafy stage

Question 20

Vegetative reproduction in mosses is by

Answer 20

fragmentation and budding

Question 21

the spores of both mosses and liverworts has

Answer 21

foot seta and capsule

Question 22

examples of mosses

Answer 22

funaria polytrichnum sphagnum