Questions No:1
Marine annelids with parapodia that bear setae are
[A] polycheates
[B] oligocheates
[C] hirudineans
[D] archiannelids
Questions No:2
Excretory organs in Chaetopterus are
[A] absent
[B] protonephridia
[C] renette glands
[D] metanephridia
Questions No:3
Arthropods are highly successful invertebrates. One of the following is not a reason for it.
[A] Chitinousexoskeleton
[B] Heteronomous metamerism
[C] Jointed appendages
[D] Homonomous metamerism
Questions No:4
Arthropods differs from that of annelids by the presence of
[A] digestive system
[B] locomotory organs
[C] striated muscles
[D] excretory system
Questions No:5
Living arthropods without antennae are
[A] insects
[B] centipedes
[C] crustaceans
[D] arachnids
Questions No:6
Arthropods are the first to have
[A] cephalisation
[B] blood vascular system
[C] true muscles
[D] striated muscles
Questions No:7
Moulting in arthropods is useful for
[A] protection
[B] reproduction
[C] growth
[D] communication
Questions No:8
Functional body cavity in arthropods is
[A] pseudocoel
[B] schizocoel
[C] haemocoel
[D] enterocoel
Questions No:9
Exoskeleton in arthropods is externally divided into
[A] somites
[B] septa
[C] sclerites
[D] stigmata
Questions No:10
Heart in arthropods is
[A] ventral
[B] dorsal
[C] unchambered
[D] absent
Questions No:11
Nerve cord of cockroach is
[A] hollow
[B] single
[C] ganglionated
[D] dorsal
Questions No:12
The process of transformation of larva into adult is called
[A] metagenesis
[B] metastasis
[C] morphogenesis
[D] metamorphosis
Questions No:13
Spider is an arthropod, but not included in Insecta. Unlike insects, spiders have
[A] four pairs of legs
[B] antennae in them
[C] wings
[D] larval stage
Questions No:14
The largest class in ‘Animalia’ is
[A] Hexapoda
[B] Myriapoda
[C] Diplopoda
[D] Chilopoda
Questions No:15
Find the mismatch
[A] Apw-crayfish
[B] Palamnaeus-scorpion
[C] Bombyx-silk moth
[D] Laccifer-\ac insect
Questions No:16
Which of the following is a living fossil?
[A] Dalmanites
[B] Lepas
[C] Limulus
[D] Daphnia
Questions No:17
Molluscs are characterised by
[A] 1 ) segmentation
[B] mantle
[C] Aristotle’s lantern
[D] spiny body covering
Questions No:18
Conchology is the study of
[A] 1 ) tumours
[B] molluscan shells
[C] echinoderms
[D] insects
Questions No:19
Gastropods are secondarily asymmetrical due to
[A] 1 ) diversified habitat
[B] torsion
[C] metagenesis
[D] detorsion
Questions No:20
Calcareous shell of molluscs is secreted by
[A] radula
[B] foot
[C] mantle epithelium
[D] hump