The following structure is most likely:
1. An attachment organ at the anterior end of tapeworms.
2. Sensory apparatus at the anterior end of nematodes.
3. The multiple compound eyes seen in aquatic helminths.
4. Food storage organ in parasitic platyhelminths.
Subtopic: Â Phylum Platyhelminthes |
 74%
Level 2: 60%+
Hints
The diagram shows an organism with the following features:
I. Presence of comb plates on the surface.
II. Bioluminescence
This animal can be:
I. Presence of comb plates on the surface.
II. Bioluminescence
This animal can be:
| 1. A sponge | 2. A Cnidarian |
| 3. A Ctenophore | 4. A flatworm |
Subtopic: Â Phylum Ctenophora |
 87%
Level 1: 80%+
Hints
Given below is a figure showing the worms which are the most common cause of helminthic infestation in the world.
1. A is male Ascaris and B is female Ascaris
2. A is female Ascaris and B is male Ascaris
3. A is male Wuchereria and B is female Wuchereria
4. A is female Wuchereria and B is male Wuchereria
1. A is male Ascaris and B is female Ascaris
2. A is female Ascaris and B is male Ascaris
3. A is male Wuchereria and B is female Wuchereria
4. A is female Wuchereria and B is male Wuchereria
Subtopic: Â Phylum Aschelminthes |
 88%
Level 1: 80%+
Hints
Given below is the body plan of a hypothetical generalized mollusc. Consider the given two statements.
| A: | I is found in all the molluscs. |
| B: | II is a cavity used for egestion, excretion and respiration. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Â Phylum Mollusca |
Level 4: Below 35%
Hints
In the given diagram of the body plan of an insect, identify the parts A-F:
| A | B | C | D | E | F | |
| 1. | Blood vessel | Nerve cord | Trachea | Spiracles | Crop | Hearts |
| 2. | Blood vessel | Nerve cord | Trachea | Spiracles | Oesophagus | Hearts |
| 3. | Nerve cord | Blood vessel | Trachea | Spiracles | Crop | Ostia |
| 4. | Nerve cord | Blood vessel | Stomo- chord |
Ostia | Oesophagus | Spiracles |
Subtopic: Â Phylum Arthropoda |
 63%
Level 2: 60%+
Hints
Given below is a diagram showing the water vascular system of an Echinoderm.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | It is a hydraulic system used by echinoderms for locomotion, food and waste transportation, and respiration. |
| II: | The system is composed of canals connecting numerous tube feet. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Â Phylum Echinodermata |
 82%
Level 1: 80%+
Hints
Identify the organism seen in the given figure:
1. Balanoglossus
2. Petromyzon
3. Amphioxus
4. Salpa
1. Balanoglossus
2. Petromyzon
3. Amphioxus
4. Salpa
Subtopic: Â Phylum Hemichordata |
 92%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.
The organism shown in the given figure is representative of the subphylum Cephalochordata. This organism is:
| 1. Ascidia | 2. Amphioxus |
| 3. Petromyzon | 4. Exocoetus |
Subtopic: Â Phylum Chordata |
 72%
Level 2: 60%+
Hints
The figure shows the mouth of a chordate. It can easily be seen that:
| I. The mouth is circular | II. Jaw is absent. |
This chordate can be:
| 1. Ascidia | 2. Amphioxus |
| 3. Petromyzon | 4. Exocoetus |
Subtopic: Â Phylum Chordata |
 82%
Level 1: 80%+
Hints
Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A. | Spongilla | P. | Sea-fan |
| B. | Euspongia | Q. | Brain coral |
| C. | Gorgonia | R. | Fresh Water sponge |
| D. | Meandrina | S. | Sea-pen |
| E. | Pennatula | T. | Bath sponge |
| A | B | C | D | E | |
| 1. | T | R | P | Q | S |
| 2. | R | T | P | Q | S |
| 3. | T | R | Q | S | P |
| 4. | R | T | S | P | Q |
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |
 80%
Level 1: 80%+
Hints
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