Q. No.A phylum which are multicellular, having Bilateral symmetry and without body cavity is
1.Platyhelminthes
2.Aschelminthes
3.Nemathelminthes
4.Both 2 and 3
Hermaphroditism is found in which phyla?
(1) Ctenophora
(2) Platyhelminthes
(3) Porifera
(4) All of these.
Planaria posses high capacity of
(1) metamorphosis
(2) regeneration
(3) alternation of generation
(4) bioluminescence
Which one of the following kinds of animals are triploblastic?
(1) Flat worms
(2) Sponges
(3) Ctenophores
(4) Corals
Some salient features and phyla of organisms are given below. Select the option which shows the correct combination of organism, its phylum and salient features.
| 1. Hydra | Coelenterata | Bilateral symmetry | Cnidoblasts present |
| 2. Planaria | Platyhelminthes | Bilateral symmetry | High regeneration capacity |
| 3. Ancylostoma | Annelida | Bilateral symmetry | Elongated and worm shape |
| 4. Octopus | Mollusca | Radial symmetry | External skeleton of shell present |
Ctenophorans are commonly referred to as
(1) Flatworms
(2) Comb jellies
(3) Sea anemone
(4) Cnidaria
The function of flame cells are
(1) Digestion and excretion
(2) Attachment and osmoregulation
(3) Anchorage and excretion
(4) Excretion and osmoregulation
Presence of flame cells is a characteristic feature of
(1) Nereis
(2) Taenia
(3) Hirudinaria
(4) Pheretima
Which of the following animal has a diploblastic level of organisation?
(1) sponges
(2) Adamsia
(3) Ctenoplana
(4) both (2) and (3)
© 2024 GoodEd Technologies Pvt. Ltd.