In Planaria, waste material of food digestion and Nitrogenous waste material removed from
1. Mouth and mouth
2. Body wall and body wall
3. Mouth and Flame-cell
4. Mouth and Body wall
Endoskeleton of calcareous ossicles, external fertilization, adults shows radial symmetry, development indirect.
The above-given feature is true for:-
1. Echinus, Asterias
2. Pila, ophiura
3. Antedon, Aplysia
4. Pinctada, cucumaria
Identify the following diagrams and these represent:
1. (a) radial symmetry, (b) bilateral symmetry
2. (a) bilateral symmetry, (b) radial symmetry
3. (a) asymmetrical, (b) radial symmetry
4. (a) bilateral symmetry, (b) asymmetrical
See the following diagrams carefully and these animals are
1. Sycon, Leucosolenia
2. Hydra, Aurelia
3. Nereis, Hirudinaria
4. Fasciola, Taenia
Which of the following option is correct?
1. Fertilization is internal and development is indirect in Scypha, Pleurobrachia
2. Flame cells help in osmoregulation and alimentary canal present in Fasciola, Taenia
3. Body is segmented and perform locomotion with the help of parapordia in Nereis, Pheretima
4. Body is covered by mantle layer and gills are present in Unio, Pila
In which of the following Radula is absent ?
1. Sepia
2. Octopus
3. Pila
4. Echinus
Respiration in Balaenoptera takes place by :-
1. Gills
2. Skin
3. Trachea
4. Lungs
The water canal system is found in:-
1. Echinus
2. Sycon
3. Balanoglossus
4. Ascidia
Correct flow water current in sponges is:-
1. Ostia OsculumSpongocoelOutside
2. OsculumSpongocoelOstiaOutside
3. OstiaSpongocoelOsculumOutside
4. OsculumOstiaSpongocoelOutside
Which of the following is the unique feature of mammal ?
1. Muscular diaphragm
2. Ear pinna
3. Mammary glands
4. All of the above