Q. No.Which of the following cnidarians are radially symmetrical and sessile?
(1) Hydra
(2) Aurelia
(3) Adamsia
(4) Both (1) and (3)
Hermaphroditism is found in which phyla?
(1) Ctenophora
(2) Platyhelminthes
(3) Porifera
(4) All of these.
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
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
© 2025 GoodEd Technologies Pvt. Ltd.