MCQ
Pteridophytes differ from bryophytes in having:
- AArchegonia.
- BVascular tissues.
- CMotile antherozoids.
- DAlternation of generations.
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$(i)$ mesosome is a extension of plasma membrane
$(ii)$ These extensions are only in the form of Spherical
$(iii)$ Mesosomes help in cell wall formation and $RNA$ synthesis
$(iv)$ They help in respiration
| Column $- I$ | Column $- II$ |
| $(1)$ Carrot and turnip | $(p)$ Roots develop from. branch |
| $(2)$ Banyan tree | $(q)$ Taproot |
| $(3)$ Maize and sugarcane | $(r)$ Shoot system |
| $(4)$ Bud | $(s)$ Roots develop from lower node of stem |
Here $A$ and $B$ refer to