Presence of flame cells is a characteristic feature of

(1) Nereis

(2) Taenia

(3) Hirudinaria

(4) Pheretima

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 87%
From NCERT
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Which of the following is not an excretory structure found in invertebrates?

1. Flame cells

2. Malpighian tubules

3. Nephridia

4. Kidney

Subtopic:  Phylum Chordata |
 86%
From NCERT
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Nematocytes are present in

(1) Adamsia

(2) Hirudinaria

(3) Sycon

(4) Echinus

Subtopic:  Phylum Coelenterata |
 90%
From NCERT
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Which of the following is dioecious?

(1) Taenia

(2) Fasciola

(3) Ascaris

(4) Earthworm

Subtopic:  Phylum Aschelminthes |
 75%
From NCERT
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Which of the following is called pearl oyster?

(1) Dentalium

(2) Pinctada

(3) Pila

(4) Aplysia

Subtopic:  Phylum Mollusca |
 86%
From NCERT
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Radial symmetry is seen in

(1) Mollusca

(2) Chordata

(3) Porifera

(4) Ctenophora

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 86%
From NCERT
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Ancylostoma is also known as

(1) Pinworm

(2) Hookworm

(3) Flatworm

(4) Filarial worm

Subtopic:  Phylum Aschelminthes |
 88%
From NCERT
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Chitinous exoskeleton is present in

(1) Mollusca

(2) Echinodermata

(3) Arthropoda

(4) Porifera

Subtopic:  Phylum Arthropoda |
 92%
From NCERT
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In which of the following are air sacs connected to the lungs?

(1) Neophron

(2) Testudo

(3) Ornithorhynchus

(4) Chelone

Subtopic:  Study of Aves & Mammals |
 73%
From NCERT
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Which of the following shows organ and organ system level of organisation for the first time?

(1) Annelida

(2) Ctenophora

(3) Platyhelminthes

(4) Aschelminthes

Subtopic:  Phylum Ctenophora & Platyhelminthes |
 61%
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