Here are the following adaptations in bryophytes to adapt land habitat:
Multicellular plant body and conservation of water:
A compact multicellular plant body was formed which helped in the conservation of water by reducing cell surface are exposed to dry land conditions.
Absorption of CO2:
Modification of photosynthetic tissues for the absorption of carbon dioxide without losing much water and exposure to light.
Absorption of water:
Special structures like rhizoids were developed for absorption of water and anchorage.
Heterogamy:
Heterogamy was evolved, forming non-motile egg containing stored food and motile sperms.
Protection of gametes:
Gametes were produced and protected by the special multicellular organs.
Embryo formation:
Multicellular embryo was formed which was retained inside the female reproductive body during its development.
Alternation of generation:
Alternation of spore producing generation (sporophyte) with gamete producing generation (gametophyte) enables the plant to produce and test the best genetic combinations for adapting to the versatile (multipurpose) terrestrial conditions.
Multicellular plant body and conservation of water:
A compact multicellular plant body was formed which helped in the conservation of water by reducing cell surface are exposed to dry land conditions.
Absorption of CO2:
Modification of photosynthetic tissues for the absorption of carbon dioxide without losing much water and exposure to light.
Absorption of water:
Special structures like rhizoids were developed for absorption of water and anchorage.
Heterogamy:
Heterogamy was evolved, forming non-motile egg containing stored food and motile sperms.
Protection of gametes:
Gametes were produced and protected by the special multicellular organs.
Embryo formation:
Multicellular embryo was formed which was retained inside the female reproductive body during its development.
Alternation of generation:
Alternation of spore producing generation (sporophyte) with gamete producing generation (gametophyte) enables the plant to produce and test the best genetic combinations for adapting to the versatile (multipurpose) terrestrial conditions.
