1. | Balanoglossus | Open-type circulation with capillaries |
2. | Betta | Closed type circulation without capillaries |
3. | Neophron | Digestive tract with crop and gizzard |
4. | Balaenoptera | Presence of mammary glands and pinnae |
1. | Presence of one auricle and one ventricle |
2. | External fertilisation |
3. | Separate sexes |
4. | Lack of capacity to regulate body temperature |
Features | Phylum A | Phylum B | |
a. | Presence of 3 germ layers | Absent | Present |
b. | Hermaphroditism | Present | Present |
c. | Regeneration | Present | Present in some members |
d. | Digestive System | Absent | Incomplete |
A | B | |
1. | Platyhelminthes | Arthropoda |
2. | Porifera | Platyhelminthes |
3. | Cnidaria | Aschelminthes |
4. | Ctenophora | Annelida |
Column-I | Column-II | ||
a. | Annelids | (i) | Triploblastic acoelomate |
b. | Platyhelminths | (ii) | Ciliated comb plates |
c. | Aschelminths | (iii) | Metamerism |
d. | Ctenophores | (iv) | Pseudocoelomates |
Euspongia, Hirudinaria, Meandrina, Chaetopleura, Carcharadon, Ctenplona, Fasciola, Bombyx, Ancylostoma |
1. | belong to same Division |
2. | have a bony endoskeleton |
3. | have a ventral heart |
4. | have cartilaginous jaws |
1. | Apple snail, Devil fish, Tusk shell, Chiton |
2. | Cattle fish, Angel fish, Dog fish, Saw fish |
3. | Sea-hare, Sea-cucumber, Sea-urchin, Sea-lily |
4. | Squid, Silkworm, Hook worm, King crab |