Artificial system of classification was first used by:
Important Questions on Plant Kingdom
Read the following combinations and arrange the below chronologically in the light of evolution.
i) Vascular Cryptogams - Ramenta
ii) Embryophytic non-archegoniate phanerogams - the presence of companion cells in the phloem
iii) Plant amphibians - elaters
iv) Tracheophytic archegoniate phanerogams - no vessels in the xylem
The correct sequence is
Phylogenetic relationship among plants based on their shared characters is shown in the cladogram below.
Identify the plants and in the correct order.
Multicellular, much reduced and dependent gametophyte
Siphonogamous fertilization
Fusion of male gametes with egg cell and secondary nucleus
Development of ovule into seed
Equal distribution of water and air in the habitat
Adaptation to excessive water and extensive dryness
Do not show adaptation to extensive dryness
Grow in excessive water and extensive dry areas
In which of the following books, characters of evolutionary importance were not considered while classifying plants?
A) Species plantarum
B) Families of flowering plants
C) Genera plantarum
D) Die Naturlichen Pflanzenfamilien
Which of the following is a merit in the Bentham and Hooker's system of classification?
(a) In gymnosperms and angiosperms, male and female gametophytes do not have an independent free-living existence.
(b) In bryophytes and pteridophytes, male and female gametophytes have an independent free-living existence.
(c) Viruses are non-cellular organisms that are characterised by having an inert crystalline structure outside the living host cell.
(d) Generally, plant viruses are single-stranded DNA viruses.
