Q. No.In some Bilateria, the body is of many segments that show serial repetition of parts. Such segments are called as:
1. Myotomes
2. Metameres
3. Proglottides
4. Comb plates
1. Myotomes
2. Metameres
3. Proglottides
4. Comb plates
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The phylum with exclusively marine animals is:
| 1. | Porifera | 2. | Cnidaria |
| 3. | Ctenophora | 4. | Platyhelminthes |
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Which of the following is not a feature of birds?
| 1. | Forelimbs modified into wings |
| 2. | Single occipital condyle |
| 3. | Ten pairs of cranial nerves |
| 4. | Four chambered heart |
Chordates are not characterized by:
| 1. | Ventral nerve cord | 2. | Post anal tail |
| 3. | Gill slits | 4. | A notochord |
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Notochord is derived from embryonic:
1. Ectoderm
2. Mesoderm
3. Endoderm
4. Ectoderm and Mesoderm
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Identify the phylum where the body cavity is not lined by mesoderm, instead, the mesoderm is present as scattered pouches between ectoderm and endoderm :
1. Cnidaria
2. Platyhelminthes
3. Mollusca
4. Aschelminthes
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Sponges are mostly:
| 1. | Asymmetrical | 2. | Radially symmetrical |
| 3. | Bilateraly symmetrical | 4. | Biradially symmetrical |
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What is present between ectoderm and endoderm in diploblastic animals?
1. Mesenteron
2. Mesenchyme
3. Mesorchium
4. Mesoglea
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Mammals are not characterized by:
1. Presence of hair
2. Presence of mammary glands
3. Homodont dentition
4. Endothermy
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