Questions No:1
Sponges are
[A] unisexual
[B] dioecious
[C] hermaphrodites
[D] sexually dimorphic
Questions No:2
The name ‘Cnidaria’ refers to
[A] totipotent cnidocy tes
[B] stinging cnidocytes
[C] gastro-vascular cavity
[D] ciliated cnidocytes
Questions No:3
Cnidoblasts in a coelenterate help in
[A] anchorage
[B] defense
[C] prey capture
[D] all of these
Questions No:4
Digestion in coelenterates is
[A] intracellular
[B] extracellular
[C] both (1) & (2)
[D] outside the body
Questions No:5
Corals are rich in
[A] silica
[B] strontium sulphate
[C] calcium carbonate
[D] hydroxyapatite
Questions No:6
Sessile zooid of coelenterates is
[A] medusa
[B] polyp
[C] gonozooid
[D] pneumatophore
Questions No:7
Metagenesis is seen in the life history of
[A] Hydra
[B] Adamsia
[C] Obelia
[D] Meandrina
Questions No:8
Identify the incorrect pair
[A] Physalia – Portuguese man-of-war
[B] Adamsia – sea anemone
[C] Gorgonia – sea pen
[D] Meandnna – brain coral
Questions No:9
Aurelia is
[A] sessile
[B] umbrella-shaped
[C] polyp like
[D] polymorphic
Questions No:10
Alternation of generation shown by coelenterates is termed
[A] metastasis
[B] metaphysis
[C] metamorphosis
[D] metagenesis
Questions No:11
A feature of coelenterates is
[A] triploblastic
[B] organs
[C] cnidocytes
[D] choanocytes
Questions No:12
Ctenophores are commonly called
[A] jelly fishes
[B] sea biscuits
[C] sea walnuts
[D] sea lions
Questions No:13
Bioluminescence is exhibited by
[A] Physalia
[B] Pleurobrachia
[C] Pavo
[D] Pennatula
Questions No:14
Ctenophores differ from cnidarians by the presence of
[A] organs
[B] cnidocytes
[C] ciliated comb plates
[D] diploblastic
Questions No:15
A feature of Ctenophores is
[A] fresh water habitat
[B] asexual reproduction
[C] locomotion by ciliated plates
[D] absence of larval form
Questions No:16
Ctenophores share more similarities with
[A] Porifera
[B] Platyhelminthes
[C] Coelenterata
[D] Annelida
Questions No:17
Ctenoplana is characterized by
[A] cnidocytes
[B] choanocytes
[C] bisexual nature
[D] spongocoel
Questions No:18
Which of the following is not a character of Taenia solium?
[A] Apolysis
[B] Proglottid
[C] Complete gut
[D] Flame cells
Questions No:19
Flatworms are mostly
[A] ectoparasites
[B] coelomates
[C] endoparasites
[D] free living
Questions No:20
Platyhelminthes are characterised by
[A] lack of organisation
[B] presence of flame cells
[C] triploblastic nature
[D] bioluminescence