Questions No:1
Common feature between Porifera, Cnidaria, Ctenophora and Platyhelminthes is
[A] bilateral symmetry
[B] eumetazoans
[C] absence of coelom
[D] tissues
Questions No:2
Platyhelminthes are characterised by
[A] radial symmetry
[B] diploblastic nature
[C] acoelomate nature
[D] segmentation
Questions No:3
Blastopore develops into anus in
[A] protostomes
[B] deuterostomes
[C] schizocoelomates
[D] pseudocoelomates
Questions No:4
Blastopore develops into mouth in
[A] protostomes
[B] deuterostomes
[C] enterocoelomates
[D] echinoderms
Questions No:5
Serial repitition of body organs in segments called
[A] metagenesis
[B] metamorphosis
[C] metamerism
[D] metastasis
Questions No:6
Segmentation is shown by
[A] Mollusca
[B] Echinodermata
[C] Hemichordata
[D] Chordata
Questions No:7
Notochord is derived from
[A] mesoderm
[B] endoderm
[C] ectoderm
[D] all of these
Questions No:8
Notochord develops
[A] dorsally
[B] ventrally
[C] laterally
[D] on any side
Questions No:9
Animals with notochord are called
[A] invertebrates
[B] triploblasticans
[C] chordates
[D] all of these
Questions No:10
Correct statement of the following is
[A] all vertebrates are chordates
[B] all chordates are vertebrates
[C] all invertebrates are chordates
[D] all chordates retain notochord
Questions No:11
Classification of organisms helps in
[A] understanding diversity
[B] assigning systematic position
[C] knowing distribution
[D] knowing origin of life
Questions No:12
Sponges are
[A] generally marine
[B] generally fresh water
[C] mostly radial symmetrical
[D] tissue grade animals
Questions No:13
Water enters into spongocoel through
[A] osculum
[B] choanocytes
[C] ostia
[D] madreporite
Questions No:14
Water circulation in sponges does not help in
[A] locomotion
[B] food gathering
[C] respiration
[D] removal of waste
Questions No:15
Collar cells in sponges line
[A] canals
[B] body wall
[C] spongocoel
[D] both (1) & (3)
Questions No:16
Characteristic feature of sponges is
[A] choanocytes
[B] coral formation
[C] multicellularity
[D] tissue formation
Questions No:17
Digestion in sponges is
[A] extracellular
[B] intracellular
[C] outside the body
[D] intercellular
Questions No:18
Sponges reproduce asexually by
[A] binary fission
[B] multiple fission
[C] fragmentation
[D] endodyogeny
Questions No:19
Which of the following is true about sponges?
[A] Intercellular digestion
[B] Direct development
[C] Internal fertilization
[D] Metagenesis
Questions No:20
Which of the following is a fresh water sponge?
[A] Scypha
[B] Euspongia
[C] Euplectella
[D] Spongilla