NEET Zoology Class11 Questions Mock Test-9
Questions No:1
Ascaris is
[A] monoecious
[B] pseudocoelomate
[C] acoelomate
[D] free living
Questions No:2
Chitin is a polysaccharide found in the exoskeleton of
[A] roundworms
[B] insects
[C] leeches
[D] snails
Questions No:3
Bioluminescence is exhibited by
[A] Physalia
[B] Pleurobrachia
[C] Pavo
[D] Pennatula
Questions No:4
Segmentation is shown by
[A] Mollusca
[B] Echinodermata
[C] Hemichordata
[D] Chordata
Questions No:5
Which of the following is true about sponges?
[A] Intercellular digestion
[B] Direct development
[C] Internal fertilization
[D] Metagenesis
Questions No:6
Circultory system for the first time developed in
[A] Platyhelminthes
[B] Aschelminthes
[C] Arthropoda
[D] Annelida
Questions No:7
Trochophore is the larva of
[A] Neopilina
[B] Chiton
[C] Pila
[D] All of these
Questions No:8
Self fertilization is seen in
[A] Ascaris
[B] Pheretima
[C] cockroach
[D] Fasciola.
Questions No:9
Which one of the following is not a characteristic of phylum Annelida?
[A] pseudocoelom
[B] ventral nerve cord
[C] closed circulatory system
[D] segmentation
Questions No:10
What is left when bath sponges dries up?
[A] spicules
[B] spongin fibres
[C] tentacles
[D] holdfast
Questions No:11
Osphradium in molluscs functions as
[A] thermoreceptor
[B] rheoreceptor
[C] chemoreceptor
[D] thigmoreceptor
Questions No:12
Larva of Hemichordata is
[A] planula
[B] nauplius
[C] glochidium
[D] tornaria
Questions No:13
Heart in arthropods is
[A] ventral
[B] dorsal
[C] unchambered
[D] absent
Questions No:14
Water currents in a sponge body are maintained by
[A] archaeocytes
[B] pinacocytes
[C] spongocytes
[D] choanocytes
Questions No:15
Ctenophores may be considered as diploblastic because
[A] of ciliated comb plates
[B] of bioluminescence
[C] mesoglea is a layer of cells
[D] of bilateral symmetry
Questions No:16
Organ-system level of organisation is seen in
[A] all multicellular animals
[B] triploblastic animals
[C] cnidarians
[D] sponges
Questions No:17
Excretory organs in insects are
[A] Malpighian tubules
[B] saccate nephridia
[C] Kidneys
[D] nephridia
Questions No:18
Endoskeleton of echinoderms includes
[A] pneumatic bones
[B] siliceous spicules
[C] calcareous ossicles
[D] chitinous ossicles
Questions No:19
Roundworms differ from flatworms by the presence of
[A] flame cells
[B] acoelom
[C] complete gut
[D] segmented body
Questions No:20
Sponges are
[A] unisexual
[B] dioecious
[C] hermaphrodites
[D] sexually dimorphic