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Biological Classification

Multiple Choice Questions

121.

In Whittaker's system of classification, prokaryotes belong to the kingdom

Monera
Protista
Animalia
Fungi

122.

Thigmotaxis is not shown by

Paramecium
Amoeba
Ascaris
Hydra

123.

Polyp phase is absent in

Hydra
Aurelia
Physalia
Obelia

124.

Contractile vacuole in protozoan Amoeba is meant for

respiration
excretion
locomotion
osmoregulation

125.

Edible part of mushroom is

basidiocarp
secondary mycelium
primary mycelium
tertiary mycelium

126.

'Clamp connections' are observed in

Basidiomycetes
Zygomycetes
Ascomycetes
Oomycetes

127.

Movements by pseudopodia of Amoeba are due to change in

pressure
atmosphere
temperature
viscosity

128.

In Whittaker's system of classification prokaryotes belong to the kingdom

Monera
Protista
Animalia
Fungi

129.
Water bloom is generally caused by

green algae

blue- green algae

bacteria

Hydrilla

blue- green algae

Water blooms are formed by the growth of some microscopic or semi- microscopic algae such as Anabaena, Arthrospira, Nodularia, Nostoc etc. These may be harmful because they are indirectly responsible for fish mortality due to depletion of oxygen.