Match the following cells/structures with their phyla of origin
1) | Flame cells | (i) | Coelenterata |
2) | Choanocytes | (ii) | Platyhelminthes |
3) | Cnidocytes | (iii) | Ctenophora |
4) | Comb plates | (iv) | Porifera |
(1) 1-(i), 2-(iv), 3-(ii), 4-(iii)
(2) 1-(iii), 2-(ii), 3-(iv), 4-(i)
(3) 1-(ii), 2-(iv), 3-(i), 4-(iii)
(4) 1-(ii), 2-(iii), 3-(i), 4-(iv)
Digestive system consists of a mouth and anus in which animals
(1) Ancylostoma
(2) Wuchereria
(3) Adamsia
(4) Both (1) and (2)
A high regeneration capacity is present in
(1) Planaria
(2) Ancylostoma
(3) Sepia
(4) Sea cucumber
Limbs are present in
(1) Osteichthyes
(2) Chondrichthyes
(3) Reptiles
(4) urochordates
Which of the following statement/s about chondrichthyes are incorrect?
1) Notochord is persistent throughout life
2) Endoskeleton is made up of bones
3) Operculum present
4) Skin is covered by placoid scales
(1) All of the above
(2) None of the above
(3) 1 and 4 are incorrect
(4) 2 and 3 are incorrect
Which of the following animal has a bony endoskeleton?
(1) Exocoetus
(2) Clarias
(3) Pristis
(4) both (1) and (2)
In which of these examples are the members exclusively chondrichthyes
(1) Scoliodon, Pristis, Labeo, Betta
(2) Scoliodon, Pristis, Betta, Trygon
(3) Scoliodon, Trygon, Pristis, Carcharodon
(4) Scoliodon, labeo, Carcharodon, Pristis
Dry, cornified skin along with epidermal scales or scutes is found in
(1) Tortoise
(2) Hyla
(3) Bufo
(4) All of the above
The common name of Calotes versicolor is
1. Garden lizard
2. Tree lizard
3. Wall lizard
4. Monitor lizard
Assertion : Starfish moves through crawling.
Reason : Starfish utilise a flow of water over the surface, for movement.