Q. No.In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remining three are correct?
Genus Name
Two characters
Phylum
1. Pila
(i) Body segmented
(ii) Mouth with Radula
Mollusca
2. Asterias
(i) Spiny skinned
(ii) Water vascular system
Echinodermata
3. Sycon
(i) Pore bearing
(ii) Canal system
Porifera
4. Periplaneta
(i) Jointed appendages
(ii) Chitinous exoskeleton
Arthropoda
(ii) Mouth with Radula
(ii) Water vascular system
(ii) Canal system
(ii) Chitinous exoskeleton
What will you look to identify the sex of the following?
| 1. | Male frog – a copulatory pad on the first digit of the hind limb |
| 2. | Female cockroach – anal cerci |
| 3. | Male shark – claspers bone on pelvic fins |
| 4. | Female Ascaris – sharply curved posterior end |
In which one of the following, the genus name, its two characters and its class/phylum are correctly matched?
| Genus Name | Two characters | Class/Phylum | ||
| 1. | Salamandra | (i) | A tympanum represents ear | Amphibia |
| (ii) | Fertilization is external | |||
| 2. | Pteropus | (i) | Skin possesses hair | Mammalia |
| (ii) | oviparous | |||
| 3. | Aurelia | (i) | Cnidoblasts | Coelenterata |
| (ii) | Organ level of organization | |||
| 4. | Ascaris | (i) | Body segmented | Annelida |
| (ii) | Males and Females distinct |
One example of animals having a single opening to the outside that serves both as mouth as well as anus is
(1) Octopus
(2) Asterias
(3) Ascidia
(4) Fasciola
Which one of the following statements about all the four of Spongilla, leech, dolphin and penguin is correct?
| 1. | Penguin is homeothermic while the remaining three are poikilothermic |
| 2. | leech is a fresh water form while all others are marine |
| 3. | Spongilla 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) Flat worms
(2) Sponges
(3) Ctenophores
(4) Corals
Which one of the following statements about certain given animals is correct?
1. Round worms (Aschelminthes) are pseudocoelomates
2. Molluscs are acoelomates
3. Insects are pseudocoelomates
4. Flat worms (Platyhelminthes) are coelomates
Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
(1) Coelenterates (cnidarians)
(2) Aschelminthes (round worms)
(3) Ctenophores
(4) Sponges
Which one of the following pairs of animal comprises ‘jawless fishes’?
(1) Lampreys and eels
(2) Mackerels and rohu
(3) Lampreys and hag fishes
(4) Guppies and hag fishes
Peripatus is a connecting link between
(1) Ctenophora and Platyhelminthes
(2) Mollusca and Echinodermata
(3) Annelida and Arthropoda
(4) Coelenterata and Porifera
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