Topic 14: Non Vascular Plants Flashcards
The earliest lineage to diverge from the common ancestor of plants
Bryophytes
What kind of phyletic group are bryophytes classified in
Paraphyletic group
What are the three phyla in non vascular plants
Mosses, hornworts, and liverworts
What do bryophytes lack
Vascular tissue, lignin, roots and leaves
What does the absence of vascular tisue systems do to bryophytes?
Absence of these features limits their size and restricts their growth.
How do bryophytes get access to water if they have no roots
The absorb water on the surfaces and prefer to live in moist environments
Are sporophytes on bryophytes branched or unbranched?
Unbranched
Sporophytes of mosses and hornworts have _____ for gas exchange
Stomata
What do sporophytes in liverwarts lack?
They lack a stomata
What are gametophytes differ to sporophytes in the bryophyte phyla?
They are bigger and longer living than sporophytes
Bryophytes have a free living __________ as the most conspicuous ____ phase in the life cycle
Gametophyte/ haploid (1n),
Dominant
Sporophytes in byrophytes are short lived and are _______ on the gametophyte
Dependant
