Q. No.In which one of the following the genus name, its two characters and its class/phylum are correctly matched?
Genus
Two Characters
Class/phylum
(a) Salman dra
(i) A tympanum represents ear
(ii) Fertilisation is external
Amphibia
(b) Pteropus
(i) Skin possesses hair
(ii) Oviparous
Mammalia
(c) Aurelia
(i) Cnidobles
(ii) organ level of Organisation
Coelenterata
(d) Ascaris
(i) Body segmented
(ii) Males and Female distinct
Annelida
1. (a)
2. (b)
3. (c)
4. (d)
| Genus | Two Characters | Class/phylum |
| (a) Salman dra | (i) A tympanum represents ear (ii) Fertilisation is external |
Amphibia |
| (b) Pteropus | (i) Skin possesses hair (ii) Oviparous |
Mammalia |
| (c) Aurelia | (i) Cnidobles (ii) organ level of Organisation |
Coelenterata |
| (d) Ascaris | (i) Body segmented (ii) Males and Female distinct |
Annelida |
2. (b)
4. (d)
| 1. | Chordata – possess a mouth provided with an upper and a lower jaw |
| 2. | Chondrichthyes – possess cartilaginous endoskeleton |
| 3. | Mammalia – give birth to young ones |
| 4. | Reptilia – possesses 3-incomplete heart with one incompletely divided ventricle. |
Which one of the following statements about all the four of Spongilla, leech, dolphin and penguin is correct?
| 1. | Penguin is homoiothermic while the remaining three are poikilothermic |
| 2. | Leech is a freshwater form while others are marine |
| 3. | Songilla has special collared cells called choanocytes, not found in the remaining three |
| 4. | All are bilaterally symmetrical |
Which one of the following kinds of animals are triploblastic?
1. Flatworms
2. Sponges
3. Ctenophores
4. Corals
Which one of the following statements about certain given animals is correct?
1. Roundworms(Aschelminthes) are pseudocoelomates
2. Molluscs are acoelomates
3. Insects are pseudocoelomates
4. Flatworms (Platyhelminthes) are coelomates
Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
1. Coelenterates (cnidarians)
2. Ascheminthes (roundworms)
3. Ctenophores
4. Sponges
Which one of the following pair of animals comprises 'jawless fishes'?
1. Lampreys and eels
2. Mackerals and rohu
3. Lampreys and hagfishes
4. Guppies and hagfishes
1. Closed circulatory system
2. Segmentation
3. Pseudocoelom
4. Ventral nerve cord
| 1. | Arthropoda - The body is divided into a head, thorax, abdomen and respiration by mouth |
| 2. | Chordata - Notochord at some stage and separate anal and urinary openings to the outside |
| 3. | Echinodermata – Pentamerous radial symmetry and mostly internal fertilization |
| 4. | Mollusca - Normally oviparous and developed through a trochophore or veliger larva |
Which one of the following pairs is mismatched?
| 1. | Pila globosa - pearl oyster | 2. | Apis indica- honey bee |
| 3. | Laccifer lacca- lac insect | 4. | Bombyx mori- silkworm |
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