National bird of India is
(1) Psittacula
(2) Passer domesticus
(3) Pavo cristatus
(4) Parakeet
Stinging capsules (nematocysts) are found in
(1) wasp and honeybee
(2) scorpion and cobra
(3) sea pen and sea fan
(4) cactus and Venus flytrap
In which of the following sets of organisms, does the external fertilization occur?
1. Echinodermata and mosses
2. Hemichordata and ferns
3. Amphibians and algae
4. Reptiles and gymnosperms
In the given table, some organisms are classified into categories. However, there is one exception. Select the option with correctly mentioned exceptional organism.
Organisms | Category | Exception | |
1. | Penicillium, Aspergillus, Mucor | Fungi | Mucor |
2. | Cacti, Venus flytrap | Plants | Cacti |
3. | Ascaris, Nereis, Wuchereria | Aschelminthes | Nereis |
4. | Scorpion, Prawn, Anopheles | Arthropoda | Prawn |
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 |
Select the option that correctly matches characteristic features with the group of three animals.
(1) Skeleton of spicules − Sycon, Adamsia, Spongilla
(2) Excretion by flame − Taenia, Fasciola, Ancylostoma
(3) Mouth contains radula − Dentalium, Octopus, Ophiura
(4) Jointed appendages − Limulus, Apis, Laccifer
Water transport system or canal system is a characteristic feature of which animal?
1. Spongilla
2. Hydra
3. Asterias
4. Echinus
Fresh water sponge is the common name of
(1) Hydra
(2) Sycon
(3) Spongilla
(4) Euspongia
Collar cells are present in the members of which phyla
1. Echinodermata
2. Coelenterata
3. Ctenophora
4. Porifera
Fragmentation is a method of asexual repoduction in
(1) Annelida
(2) Platyhelminthes
(3) Aschelminthes
(4) Porifera