1.
The smallest gymnosperm is
A
Zamia sp.
B
Eucalyptus
C
Wolfia sp.
D
Sequoia sp.
Loading practice questions
41 practice sets · Page 1 of 3
The smallest gymnosperm is
Zamia sp.
Eucalyptus
Wolfia sp.
Sequoia sp.
In lichens Algal component is known as
mycobiont
Phycobiont
A & B
none of these
Helophiles is also called
Eubacteria
Actinomycetes
Cynobacteria
Archae bacteria
A Prothallus is
A structure in pteridophytes formed before the thallus develops
A sporophytic free living structure formed in pteridophytes
A gametophyte free living structure formed in pteridophytes
A primitive structure formed after fertilization in pteridophytes
If the diploid number of a flowering plant is 36. What would be the chromosome number in its endosperm
36
18
54
72
The smallest gymnosperm is
Wolfia sp.
Sequoia sp.
Eucalyptus sp.
Zamia sp.
The tallest living tree in the world is
Wolffia sp.
Sequoia sp.
Zamia sp.
Eucalyptus sp.
The tallest living tree of a Angioperm is
Sequoia sp.
Wolffia sp.
Zamia sp.
Eucalyptus sp.
By how many criteria, living organisms have been classified into five kingdom
Two
Four
Three
Five
Holdfast, stipe and frond constitutes the plant body in case of
Chlorophyceae
Phaeophyceae
All of the above
Rhodophyceae
Plant of this group possess naked seed
Angiosperms
Bryophytes
Pteridophytes
Gymnosperms
A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle bcause the male gametes are motile. Identify the group to which it belongs to
Bryophytes
Gymnosperms
Pteridophytes
Monocots
Presence of rigid cell wall is characterized by kingdom
Monera
Animalia
Protista
Plantae
Cyanobacteria are classified under
Monera
Plantae
Algae
Protista
Fusion of two motile gametes which are dissimilar in size is termed as
Isogamy
Zoogamy
Oogamy
Anisogamy
In which plant, the gametophytic phase is main and sporophytic phase is subsidiary
Nephrolepis
Anthoceros
Equisetum
Selaginella
The study of algae is called
Lichenology
Taxonomy
Mycology
Algology
In lichens fungal component is known as
phycobiont
mycobiont
none of these
A & B
In lichens Algal component is known as
mycobiont A
& B
none of these
Phycobiont
Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is
Pteridophytes
Gymnosperms
Monocots
Dicots