Ctenophora; Emission of light.
Porifera; Feeding, respiration and excretion.
Cnidarian; Anchorage, Defense and food capturing
Mollusca; Locomotion, transport of food and respiration.
C. Cnidarian; Anchorage, Defense and food capturing
five
six
seven
eight
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.
In chondrichthyes notochord is persistent throughout life.
All mammals are viviparous and possess diaphragm for breathing.
All sponges are marine.
All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal).
Eggs with a calcareous shell
Scales on their hind limbs
Four-chambered heart
Two special chambers-crop and gizzard in their digestive tract
Mackerals and rohu
Lampreys and hag fishes
Guppies and hag fishes
Lampreys and eels
Diaphragm
Coelom
Pharyngeal gill clefts
Dorsal nerve cord
notochord is absent.
pharyngeal gill-slits are lacking.
dorsal nerve cord is absent.
heart is lacking.
visceral hump
parapodia
radula
spicules
They are acoelomates.
They are bilaterally symmetrical.
They lack a digestive system.
They have a circulatory system.
They all have calcareous spicules.
They have high regenerative power.
They are found only in marine water.
They are all radially symmetrical.
Earthworm, pinworm, tapeworm
Prawn, scorpion, Locusta
Sponge, Sea anemone, starfish
Malarial parasite, Amoeba, mosquito
Ctenophora
Cnidaria
Porifera
Protozoa
respiration and absorption.
osmoregulation and circulation.
respiration and excretion.
osmoregulation and excretion.
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 |
---|---|
(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
one single opening to the digestive canal.
cilia on the surface to create water current.
radial symmetry.
asymmetrical body.
Hairy skin and oviparity
Hairy skin and mammary glands
Mammary glands and teeth
Pinna and teeth
Platyhelminthes has incomplete digestive system.
In coelenterates, the arrangement of cells is more complex.
Nereis is monoecious but earthworms and leeches are dioecious.
Simple and compound eyes are present in the animals of those phylum whose over two-thirds of all named species on earth are arthropods.
Germinal layers.
Pathway of water transport.
Pattern of organization of cells.
Serial repetition of the segments.
Torpedo
Petromyzon
Trygon
Exocoetus
A – Locust, B – Scorpion, C – Prawn, D – Pila
A – Locust, B – Prawn, C – Scorpion, D – Pila
A – Locust, B – Scorpion, C – Prawn, D – Snail
A – Butterfly, B – Scorpion, C – Prawn, D – Pila
Cnidocytes
Choanocytes
Interstitial cells
Gastrodermal cells
Three pairs of legs and segmented body.
Chitinous cuticle and two pairs of antennae.
Jointed appendages and chitinous exoskeleton.
Cephalothorax and tracheae.
turtle
Chameleon
Naja (Cobra)
crocodile
Column -I | Column- II |
---|---|
(Phylum) | (Special features present) |
A. Porifera | I. Mammary glands |
B. Mollusca | II. Cloaca |
C. Ctenophora | III. Choanocytes |
D. Amphibia | IV. Radula |
E. Mammalia | V. Comb plates |
A III; B IV; C V; D II; E I
A IV; B III; C V; D II; E I
A III; B IV; C II; D V; E I
A III; B V; C IV; D II; E I
X – Reptile; B
X – Reptile; A
X – Amphibia, C
X – Pisces; D
(i) and (ii)
(iii) and (iv)
(i), (ii) and (iii)
All of these
(i) and (ii)
(i) and (iv)
(i), (ii) and (iii)
All of these
Porifera
Annelida
Mollusca
Echinodermata
Only (i)
Only (iv)
(i), (ii) and (iii)
All of these