AP BIOLOGY

PLANTS

PTERIDOPHYTES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
One of the major difference between bryophytes and pteridophytes
A
With respect to water conduction system
B
With respect to dominance of sporophyte
C
With respect to root stem and leaf
D
All of the above
Explanation: 

Detailed explanation-1: -Bryophytes are non-vascular plants, without xylem and phloem. They may reproduce both sexually and vegetatively. For eg., liverworts and hornworts. On the contrary, pteridophytes are vascular plants with xylem and phloem.

Detailed explanation-2: -Bryophytes are embryophytes that are non-vascular i.e., they have no xylem and phloem. Pteridophyte are vascular plants i.e., plants with xylem and phloem, that reproduce and disperse via spores. The dominant phase in bryophyte is gametophyte while the dominant phase in pteridophyte is sporophyte.

Detailed explanation-3: -The key difference between these three groups is the habitat where they are grown. Bryophytes are adapted to grow in amphibious environments; Pteridophytes are adapted to terrestrial environments which are a moist and shady while, Gymnosperms are fully adapted to terrestrial environments.

Detailed explanation-4: -Bryophytes and ferns are non-flowering plants. Furthermore, they are seedless plants. The key difference between bryophytes and ferns is that the bryophytes are nonvascular plants while ferns are vascular plants. In simple words, bryophytes lack xylem and phloem while xylem and phloem are present in ferns.

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