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Q. No.What is true for open circulatory system?
1.
Cells and tissues are directly bathed in blood
2.
Capillaries are present
3.
Blood is circulated only through a series of vessels of varying diameter
4.
Present in earthworm
Subtopic: Basis of Classification |
85%
Level 1: 80%+
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Both Molluscs and Echinoderms:
| 1. | exhibit radial symmetry as adults |
| 2. | have segmented bodies |
| 3. | are diploblastic |
| 4. | are coelomates |
Subtopic: Phylum Mollusca | Phylum Echinodermata |
84%
Level 1: 80%+
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Subtopic: Phylum Echinodermata |
86%
Level 1: 80%+
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Which bilaterally symmetrical and triploblastic organism doesn’t have a coelom of any kind?
1. Planaria
2. Asterias
3. Ascaris
4. Nereis
1. Planaria
2. Asterias
3. Ascaris
4. Nereis
Subtopic: Phylum Platyhelminthes |
81%
Level 1: 80%+
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A notochord, persistent throughout life and present from head to tail region is seen in:
1. Saccoglossus
2. Salpa
3. Branchiostoma
4. Petromyzon
1. Saccoglossus
2. Salpa
3. Branchiostoma
4. Petromyzon
Subtopic: Phylum Chordata |
74%
Level 2: 60%+
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Which class of vertebrates bears jaw but does not bear limbs?
| 1. | Cyclostomata | 2. | Chondrichthyes |
| 3. | Amphibia | 4. | Reptilia |
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
72%
Level 2: 60%+
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Triploblastic, bilaterally symmetrical animals with true coelom but no segmentation are:
| 1. | Aschelminthes | 2. | Molluscs |
| 3. | Annelids | 4. | Chordates |
Subtopic: Phylum Mollusca |
81%
Level 1: 80%+
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Match each item in Column-I with one in Column-II and select the best match from the codes given:
Codes:
| Column-I | Column-II | ||
| A. | Comb plates | P. | Cnidaria |
| B. | Metagenesis | Q. | Mollusca |
| C. | Canal system | R. | Sponges |
| D. | Radula | S. | Ctenophora |
| A | B | C | D | |
| 1. | S | P | R | Q |
| 2. | P | S | R | Q |
| 3. | P | S | Q | R |
| 4. | S | P | Q | R |
Subtopic: Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora | Phylum Mollusca |
89%
Level 1: 80%+
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The central nervous system in chordates is not:
| 1. | Single |
| 2. | Hollow |
| 3. | Ventral |
| 4. | Derived from embryonic ectoderm |
Subtopic: Phylum Chordata |
72%
Level 2: 60%+
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Animals with water vascular system:
| 1. | have a well developed excretory system |
| 2. | exhibit bilateral symmetry as adults |
| 3. | have an endoskeleton of calcareous ossicles |
| 4. | are all fresh water species |
Subtopic: Phylum Echinodermata |
75%
Level 2: 60%+
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