Which of the following is not correct comparison between Locusta (A) and Prawn (B), illustrated in the following diagram?
Character
Locusta (A)
prawn (B)
1.
Body Segmentation and abdomen
Head, Thorax and Abdomen
Cephalothorax
2.
Excretory organs
Malpighian tubules
Green glands
3.
Respiratory organ
Trachea
Gills
4.
Eye
Compound
Simple
1. 1
2. 2
3. 3
4. 4
Character
Locusta (A)
prawn (B)
1.
Body Segmentation and abdomen
Head, Thorax and Abdomen
Cephalothorax
2.
Excretory organs
Malpighian tubules
Green glands
3.
Respiratory organ
Trachea
Gills
4.
Eye
Compound
Simple
Which of the following statements are true for the phylum-Chordata?
| (a) | In Urochordata, notochord extends from head to tail and is present throughout their life |
| (b) | In Vertebrata, notochord is present during the embryonic period only |
| (c) | Central nervous system is dorsal and hollow |
| (d) | Chordata is divided into 3 sub-phyla : Hemichordata, Tunicata and Cephalochordata |
2. (a) and (b)
3. (b) and (c)
4. (d) and (c)
Bilaterally symmetrical and acoelomate animals are exemplified by:
| 1. | Platyhelminthes | 2. | Aschelminthes |
| 3. | Annelida | 4. | Ctenophora |
Match the following columns and select the correct option:
| Column-I | Column-II | ||
| (a) | Gregarious, polyphagous pest | (i) | Asterias |
| (b) | Adult with radial symmetry and larva with bilateral symmetry | (ii) | Scorpion |
| (c) | Book lungs | (iii) | Ctenoplana |
| (d) | Bioluminescence | (iv) | Locusta |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (i) | (ii) | (iii) |
| 2. | (iii) | (ii) | (i) | (iv) |
| 3. | (ii) | (i) | (iii) | (iv) |
| 4. | (i) | (iii) | (ii) | (iv) |
Match the following columns and select the correct option.
| Column I | Column II | ||
| (a) | 6 - 15 pairs of gill slits | (i) | Trygon |
| (b) | Heterocercal caudal fin | (ii) | Cyclostomes |
| (c) | Air Bladder | (iii) | Chondrichthyes |
| (d) | Poison sting | (iv) | Osteichthyes |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (iv) | (ii) | (iii) | (i) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (ii) | (iii) | (iv) | (i) |
Tube within a tube plan is found in
1. Coelenterata
2. Ctenophora
3. Platyhelminthes
4. Aschelminthes
Correct flow water current in sponges is:-
| 1. | Ostia OsculumSpongocoelOutside |
| 2. | OsculumSpongocoelOstiaOutside |
| 3. | OstiaSpongocoelOsculumOutside |
| 4. | OsculumOstiaSpongocoelOutside |
Bioluminescence is well marked in member of which phylum?
1. Porifera
2. Echinodermata
3. Ctenophora
4. Platyhelminthes
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 |
Which one of the following is not the function of cnidoblasts (sting cell)?
1. Anchorage
2. Defense
3. Caputure of prey
4. Reproduction
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