Platyhelminthes
Arthropoda
Mollusca
Ctenophora
D. Ctenophora
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.
Sycon - Porifera
Aurelia - Coelenterata
Pleurobrachia - Ctenophora
Tapeworm - Platyhelminthes
They are acoelomates.
They are bilaterally symmetrical.
They lack a digestive system.
They have a circulatory system.
Porifera
Annelida
Mollusca
Echinodermata
(i) and (iii) only
(ii) and (iv) only
(ii), (iii), (v) and (vi) only
All of these
Osculum
Porocytes
Spongocoel
Choanocytes
A radially symmetrical; B bilaterally symmetrical
A bilaterally symmetrical; B radially symmetrical
A bilaterally symmetrical; B asymmetrical
A metamerically segmented; B asymmetrical
They have a water vascular system.
They have an internal skeleton.
They are protostomes.
They have bilateral symmetry at larval stage.
arthropoda
mollusca
echinodermata
chordata
Cnidocytes
Choanocytes
Interstitial cells
Gastrodermal cells
notochord is absent.
pharyngeal gill-slits are lacking.
dorsal nerve cord is absent.
heart is lacking.
It is an aquatic form.
Circulatory system is of open type.
It possesses parapodia for swimming.
Neural system consists of paired ganglia connected by lateral nerves to a double ventral nerve cord.
An external skeleton made of chitin (a polysaccharide) and protein rather than a shell made chiefly of mineral salts.
Subdivision of the legs into movable segments.
Distinct group of muscles, derived from many body segments, that move the separate parts of the exoskeleton.
All of the above
Switch from gill respiration to air-breathing lungs.
Improvements in water resistance of skin.
Alteration in mode of locomotion.
Development of feathers for insulation.
Eggs with a calcareous shell
Scales on their hind limbs
Four-chambered heart
Two special chambers-crop and gizzard in their digestive tract
It is present only in larval tail in ascidians.
It is replaced by a vertebral column in adult frog.
It is absent throughout the life in humans from the very beginning.
It is present throughout life in Amphioxus.
Naja (Cobra)
Bangarus (Krait)
Viper (Viper)
All of these
A - Pseudocoelomate; B - Coelomate, C-Acoelomate
A - Coelomate, B - Pseudocoelomate, C- Acoelomate
A - Coelomate; B- Acoelomate; C - Pseudocoelomate
A - Coelomate; B- Acoelomate; C-Eucoelomate
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
A and B
A and C
B and C
All of the above.
1 & 2
2 & 4
3 & 4
1 & 3
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.
Only (i)
Both (i) and (ii)
Both (i) and (iii)
All of these
X – Reptile; B
X – Reptile; A
X – Amphibia, C
X – Pisces; D
Torpedo
Petromyzon
Trygon
Exocoetus
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
two
three
four
none of these
X - Coelenterate, Y - Polyp, Z - Medusa
X - Cnidarian, Y - Medusa, Z - Polyp
X - Ctenophora, Y - Radula, Z - Hypostome
X - Porifera, Y - Osculum, Z - Radula
Column-I | Column-II |
---|---|
(Term/Feature) | (Examples) |
A. Gregarious pest | i. Hirudinaria |
B. Vector | ii. Planaria |
C. Oviparous with | iii. Sepia indirect development |
D. Metameres | iv. Aedes |
E. High regeneration | v. Locust capacity |
A - i, B - ii, C - iii, D - iv, E - v
A - iii, B - v, C - ii, D - iv, E - i
A - iii, B - i, C - v, D - ii, E - iv
A - v, B - iv, C - iii, D - i, E - ii
Column- I | Column -II |
---|---|
(Organism) | (Excretory structures) |
A. Cockroach | I. Nephridia |
B. Cat fish | II. Malpighian tubules |
C. Earthworm | III. Kidneys |
D. Balanoglossus | IV. Flame cells |
E. Flatworm | V. Proboscis gland |
A I; B III; C II; D IV; E V
A III; B I; C II; D V; E IV
A II; B I; C III; D V; E IV
A II; B III; C I; D V; E IV