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 |
 85%
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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Which of the following statements about Aschelminthes is incorrect

(1) They are pseudocoelomate

(2) Digestive system is complete

(3) Circulatory and respiratory system is well developed

(4) Distinctive features include –often worm shaped, elongated

Subtopic:  Phylum Aschelminthes |
 71%
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