the division of body into head, neck, trunk and tail.
body covered with exoskeleton.
the possession of two pairs of functional appendages.
the presence of well- developed skull.
D. the presence of well- developed skull.
Column -I | Column- II |
---|---|
A. Physalia | I. Sea anemone |
B. Meandrina | II. Brain coral |
C. Gorgonia | III. Sea fan |
D. Adamsia | IV. Portuguese man-of-war |
A III; B II; C I; D IV
A IV; B III; C II; D I
A IV; B II; C III; D I
A II; B III; C I; D IV
A - Sycon, B - Euspongia, C - Spongilla
A - Euspongia, B - Spongilla, C - Sycon
A - Spongilla, B - Sycon, C - Euspongia
A - Euspongia, B - Sycon, C - Spongilla
Porifera
Ctenophora
Coelenterata
Platyhelminthes
(ii), (v) only
(i), (ii), (vi) only
(i), (ii), (iii), (iv) only
All of these.
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.
Platyhelminthes
Arthropoda
Mollusca
Ctenophora
the division of body into head, neck, trunk and tail.
body covered with exoskeleton.
the possession of two pairs of functional appendages.
the presence of well- developed skull.
A - Pleurobrachia, B - Cnidoblast, C - Aurelia, D - Adamsia
A - Aurelia, B - Adamsia, C - Cnidoblast, D - Pleurobrachia
A - Cnidoblast, B - Pleurobrachia, C - Adamsia, D - Aurelia
A - Adamsia, B - Aurelia, C - Pleurobrachia, D - Cnidoblast
A - Octopus; B -Asterias, C- Ophiura
A - Asterias; B - Ophiura, C- Octopus
A - Echinus; B - Octopus C - Ophiura
A - Ophiura; B - Echinus, C- Octopus
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
nephridia
flame cells
malphigian tubules
gills
Three pairs of legs and segmented body.
Chitinous cuticle and two pairs of antennae.
Jointed appendages and chitinous exoskeleton.
Cephalothorax and tracheae.
A - Male Ascaris, B - Hirudinaria (leech), C- Nereis
A - Female Ascaris, B - Nereis, C-Hirudinaria (leech)
A - Female Ascaris B- Hirudinaria (leech), C - Nereis
A - Male Ascaris, B - Nereis, C- Hirudinaria (leech)
Bombyx and Apis
Laccifer and Anopheles
Locusta and Limulus
All of the above
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.
five
six
seven
eight
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calcium hydroxide
calcium sulphate
calcium carbonate
sodium bicarbonate
X - Coelenterate, Y - Polyp, Z - Medusa
X - Cnidarian, Y - Medusa, Z - Polyp
X - Ctenophora, Y - Radula, Z - Hypostome
X - Porifera, Y - Osculum, Z - Radula
Hemichordata
Chordata
Echinodermata
Annelida
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.
Ctenophora
Cnidaria
Porifera
Protozoa
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.
Segmentation
Antennae
Bilateral symmetry
Exoskeleton
Hydra
Aurelia
Physalia
Obelia
A, Between B & C
B, Between A & C
C, Between C & D
D, Between A & B
Naja (Cobra)
Bangarus (Krait)
Viper (Viper)
All of these
Diploblastic in nature.
Having radial symmetrical body.
Dioecious with direct development.
Presence of sensory tentacles on anterior head region.
A medusa as the dominant stage in the life cycle.
Possession of a gastro vascular cavity.
Sexual reproduction.
Nematocysts present on the tentacles.