CBSE
There exists a close association between the alga and the fungus within a lichen. The fungus
fixes the atmospheric nitrogen for the alga
provides protection, anchorage and absorption for the alga
provides food for the alga
releases oxygen for the alga
Litmus is obtained from
Rocella montagnei
Lasallia postulata
Both (a) and (b)
Cladonia crispata
Which one has no intermediate host?
Taenia
Ascaris
Fasciola
Plasmodium
Protists are
(i) unicellular and prokaryote
(ii) unicellular and eukaryote
(iii) multicellular and eukaryote
(iv) autotroph or heterotroph
(i), (ii) and (iii)
(ii), (iii) and (iv)
(iii), (iv)
(ii), (iv)
In Whittaker's system of classification prokaryotes belong to the kingdom
Monera
Protista
Animalia
Fungi
'Clamp connections' are observed in
Basidiomycetes
Zygomycetes
Ascomycetes
Oomycetes
Water bloom is generally caused by
green algae
blue- green algae
bacteria
Hydrilla
Which one shows bio-luminescence?
Noctiluca
Polystomella
Entamoeba
Suctoria
Movements by pseudopodia of Amoeba are due to change in
pressure
atmosphere
temperature
viscosity
A genophore is made up of
a single double stranded DNA
a single stranded DNA
RNA and histones
histones and non- histones