Food storage in Leucosolenia occur by:
1. ostia
2. osculum
3. thesocytes
4. spongocoel
The structure present in all adult vertebrates is:
1. | Notochord |
2. | Dorsal tubular nerve cord |
3. | Pharyngeal gill slits |
4. | All of the above |
Which one of the following is not a vertebrate?
1. Sea cow
2. Sea lion
3. Sea horse
4. Sea hare
The canal system is a characteristic feature of:
1. echinoderms
2. helminths
3. coelenterates
4. sponges
Chondrichthyes is characterised by:
1. | placoid scale |
2. | ventral mouth |
3. | ctenoid scale and ventral mouth |
4. | placoid scale and ventral mouth |
Secondary body cavity with segmented mesodermal lining is called:
1. haemocoel
2. neurocoele
3. true coelom
4. pseudocoelom
One animal that does not perform locomotion is:
1. Sycon
2. Nereis
3. Sepia
4. Euglena
The scientific name of gharial is:
1. Naja bungarus
2. Gaviais gangeticus
3. Hemidactylus flavivridis
4. None of the above
Which of the given option is correct regarding the statements?
Statement I: | Cephalochordata bears notochord all along the body throughout life. |
Statements II: | Urochordate bears vertebral column only in tail region throughout the life. |
1. | I wrong, II correct |
2. | I correct, II wrong |
3. | Both I and II are wrong |
4. | Both are correct |