Animal Kingdom Non Chordates Quiz No:6

Questions No:1

Echinus is characterised by

[A] dorsal anus

[B] absence of anus

[C] dioecious

[D] parasitic larva

Questions No:2

Most distinctive feature of echinoderms is

[A] radial symmetry

[B] enterocoelom

[C] water vascular system

[D] endoskeleton

Questions No:3

. Ophiura is without

[A] digestive system

[B] water vascular system

[C] excretory system

[D] larva in development

Questions No:4

Identify the correct matching

[A] Antedon – sea lemon

[B] Asterias -sea lily

[C] Cucumaria-sea urchin

[D] Ophiura – brittle star

Questions No:5

Open type of circulatory system is seen in all of the following except

[A] Hemichordata

[B] Arthropoda

[C] Mollusca

[D] Annelida

Questions No:6

Respiratory organs of Saccoglossus are

[A] spiracles

[B] lungs

[C] gills

[D] book lungs

Questions No:7

Excretory organ of hemichordates is

[A] renette gland

[B] saccate nephridia

[C] proboscis gland

[D] flame cells

Questions No:8

Balanoglossus is a

[A] chordate

[B] vertebrate

[C] non-chordate

[D] protozoan

Questions No:9

Organ-system level of organisation is seen in

[A] all multicellular animals

[B] triploblastic animals

[C] cnidarians

[D] sponges

Questions No:10

Lowest level of organization among eumetazoans is

[A] tissue level

[B] cellular level

[C] organ-system level

[D] tissue-organ level

Questions No:11

Different types of cells are functionally isolated in which grade of organization?

[A] Tissue level

[B] Cellular level

[C] Organ level

[D] Organ-system level

Questions No:12

The principal axis of radial symmetry is

[A] transverse

[B] oro-aboral

[C] sagittal

[D] any axis

Questions No:13

Cephalization is associated with

[A] radial symmetry

[B] biradial symmetry

[C] spherical symmetry

[D] bilateral symmetry

Questions No:14

Multicellular animals do not exhibit

[A] biradial symmetry

[B] spherical symmetry

[C] radial symmetry

[D] bilateral symmetry

Questions No:15

Peristalsis of alimentary canal occurs independent of the contraction and relaxation of body wall in

[A] acoelomates

[B] pseudocoelomates

[C] eucoelomates

[D] both (2) and (3)

Questions No:16

Body cavity is formed by replacing blastocoel in

[A] Cnidaria

[B] Platyhelminthes

[C] Nematoda

[D] Annelida

Questions No:17

Double fold peritoneum that joins organs in eucoelom is

[A] mesentery

[B] retroperitoneum

[C] perimysium

[D] ligament

Questions No:18

Tube-in-tube organization is absent in

[A] flatworms

[B] roundworms

[C] earthworms

[D] silkworms

Questions No:19

Mouth is formed as a secondary opening of alimentary canal in

[A] protostomes

[B] schizocoelomates

[C] cnidarians

[D] enterocoelomates

Questions No:20

Various body parts are surrounded by mesenchyme in

[A] acoelomates

[B] pseudocoelomates

[C] coelomates

[D] all triploblastic animals