(i) and (iii) only
(ii) and (iv) only
(ii), (iii), (v) and (vi) only
All of these
C. (ii), (iii), (v) and (vi) only
nephridia
flame cells
malphigian tubules
gills
Body covered with dry and cornified skin, scales over the body are epidermal, they do not have external ears.
Body is covered with moist skin and is devoid of scales, the ear is represented by a tympanum, alimentary canal, urinary and reproductive tracts open into a common cloaca.
Fresh water animals with bony endoskeleton and airbladder regulate buoyancy.
Marine animals with cartilaginous endoskeleton and body is covered with placoid scales.
five
six
seven
eight
Reptilia : possess 3 - chambered heart with one incompletely divided ventricle.
Chordata : Possess a mouth provided with an upper and lower jaw.
Chondrichthyes : Possess cartilaginous endoskeleton.
Mammalia : Give birth to young one.
Round worms (aschelminthes) are pseudocoelomates.
Molluscs are acoelomates.
Insects are pseudocoelomates.
Flatworms (platyhelminthes) are coelomates.
A - Octopus; B -Asterias, C- Ophiura
A - Asterias; B - Ophiura, C- Octopus
A - Echinus; B - Octopus C - Ophiura
A - Ophiura; B - Echinus, C- Octopus
They are bilaterally symmetrical, triploblastic and coelomate animals.
Body is covered by a calcareous shell and is unsegmented with a distinct head, muscular foot and visceral hump.
The mouth contains a file-like rasping organ for feeding, called radula.
All of the above
Storage of carbohydrates as starch.
Multicellularity.
Obtaining nutrients by ingestion.
Having eukaryotic cells without walls.
Prawn has two pairs of antennae.
Nematocysts are characteristic feature of the phylum cnidaria.
Millipedes have two pairs of appendages in each segment of the body.
Animals that belong to phylum porifera are exclusively marine.
arthropoda
mollusca
echinodermata
chordata
Cyclostomata
Chondrichthyes
Osteichthyes
Amphibia
Arthropoda
Annelida
Mollusca
Echinodermata
radial
bilateral
asymmetrical
non- symmetrical
Column -I | Column -II |
---|---|
(Types of animals) | (Examples) |
A. Limbless reptiles | I. Elephant |
B. Jawless vertebrates | II. Lamprey |
C. Flightless bird | III. Ichthyophis |
D. Largest | IV. Ostrich terrestrial animal |
E. Limbless amphibia | V. Cobra |
A II; B V; C IV; D I; E III
A V; B II; C IV; D I; E III
A V; B II; C I; D IV; E III
A V; B IV; C II; D I; E III
Ctenophora
Cnidaria
Porifera
Protozoa
(ii), (iv) and (v)
(i), (iii) and (v)
(iii), (iv) and (v)
(i), (ii) and (iii)
one single opening to the digestive canal.
cilia on the surface to create water current.
radial symmetry.
asymmetrical body.
two
three
four
none of these
PlatyhelminthesPlanaria, Schistosoma, Enterobius
Mollusca Loligo, Sepia, Octopus
Porifera Spongilla, Euplectella, Pennatula
Cnidaria Bonellia, Physalia, Aurelia
X – Reptile; B
X – Reptile; A
X – Amphibia, C
X – Pisces; D
Eggs with a calcareous shell
Scales on their hind limbs
Four-chambered heart
Two special chambers-crop and gizzard in their digestive tract
A : Biradial, organisms is divided into unequal halves by any plane through the central axis.
B: Bilateral, body is divided into equivalent right and left halves by only one plane.
A: Asymmetrical, organisms is not divided into equal halves by any plane through the central axis.
B: Radial, in which any plane passing through the central axis of the body divides the organism into two identical halves.
A - Pseudocoelomate; B - Coelomate, C-Acoelomate
A - Coelomate, B - Pseudocoelomate, C- Acoelomate
A - Coelomate; B- Acoelomate; C - Pseudocoelomate
A - Coelomate; B- Acoelomate; C-Eucoelomate
They all have calcareous spicules.
They have high regenerative power.
They are found only in marine water.
They are all radially symmetrical.
Attain complex body shapes and thus locomote more precisely.
Move through loose marine sediments.
Be hermaphroditic.
Inject paralytic poisons into their prey.
Labeo
Myxine
Clarias
Trygon
Switch from gill respiration to air-breathing lungs.
Improvements in water resistance of skin.
Alteration in mode of locomotion.
Development of feathers for insulation.
Column -I | Column- II |
---|---|
(Phylum) | (Examples) |
A. Echinodermata | I. Ascidia, Doliolum |
B. Hemichordata | II. Asterias, Ophiura |
C. Urochordata | III. Branchiostoma |
D. Cephalochordata | IV. Balanoglossus, Saccoglossus |
A IV; B II; C I; D III
A II; B IV; C I; D III
A II; B IV; C III; D I
A II; B I; C IV; D III
Porifera
Annelida
Mollusca
Echinodermata
Column -I | Column -II |
---|---|
(Organisms) | (Comman name) |
A. Pennatula | I. Sea-lily |
B. Antedon | II. Sea- pen |
C. Echinus | III. Sea-urchin |
D. Cucumaria | IV. Sea - cucumber |
A II; C III; D I; E IV
A II; C IV; D I; E III
A II; C I; D III; E IV
A II; C I; D III; E IV