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

132.

Which one shows bio-luminescence?

• Noctiluca

• Polystomella

• Entamoeba

• Suctoria

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)

Which one has no intermediate host?

• Taenia

• Ascaris

• Fasciola

• Plasmodium

Litmus is obtained from

• Rocella montagnei

• Lasallia postulata

• Both (a) and (b)

• Cladonia crispata

Which are sensitive to SO₂ pollution?

• Mosses

• Algae

• Lichen

• Ferns

The first phylogenetic system of plant classification was proposed by

• Engler

• Engler and Prantl

• Eichler

• Wetlstein

Black rust of wheat is a fungal disease caused by

• Melampsora lini

• Claviceps Purpurea

• Albugo candida

• Puccinia graemzinis tritici

In which genera endospores are formed for reproduction

• Monococcus and Clostridium

• Bacillus and Clostridium

• Mucor and Bacillus

• None ofthe above

Yeast belongs to which class

• Basidiomycetes

• Eumycetes

• Ascomycetes

• None of these