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
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is present between ectoderm and endoderm in diploblastic animals?
1. Mesenteron
2. Mesenchyme
3. Mesorchium
4. Mesoglea
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify 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. Molluska
4. Aschelminthes
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNotochord is derived from embryonic:
1. Ectoderm
2. Mesoderm
3. Endoderm
4.Ectoderm and Mesoderm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAll triploblastic animals primarily possess
1. Bilateral symmetry
2. True coelom
3. Unisexuality with sexual dimorphism
4. Regeneration power
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen any plane of section passing through the central axis of body, divides the organism into identical halves, it is called
1. Radial symmetry
2. Biradial symmetry
3. Bilateral symmetry
4. Spherical symmetry
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMark the incorrect statement
1. Radial symmetry is advantageous to sedentary mode of life
2. Notochord is mesodermal in origin placed between dorsal hollow nerve cord and alimentary canal in some animals
3. Pseudocoel (false coelom) derived from blastocoel of the embryo and is bounded by ectoderm and mesoderm
4. Cephalization is the concentration of sense organs, nervous tissue (brain), and food capturing organs at the anterior end
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of correct statements amongst the given statements is:
I. The digestive system in Platyhelminthes is incomplete.
II. Coelenterates, Ctenophores, and Echinoderm larvae are radially symmetrical.
III. Bilateral symmetry is seen in annelids and arthropods but not in mollusks.
IV. Notochord is a mesodermally derived structure formed on the dorsal side in some animals.
V. Aschelminthes are pseudocoelomates
1. 2
2. 3
3. 4
4. 5
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA true coelom is between
1. Mesoderm and endoderm
2. Ectoderm and mesoderm
3. Body wall and endoderm
4. Body wall and mesoderm
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn animal with the following body wall organization will not have:
1. Cephalization
2. Three germ layers
3. Bilateral symmetry
4. A complete digestive tract
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology