Which of the following is an egg laying mammal?

(1) Kangaroo

(2) Platypus

(3) Penguin

(4) Whale

 

Subtopic:  Study of Aves & Mammals |
 90%
From NCERT
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Class Crustacea has following features:

(1) Cephalothorax, book lungs, chitinous exoskeleton

(2) Head and thorax, biramous appendages, book lungs

(3) Head and thorax, book lungs, chitinous exoskeleton

(4) Cephalothorax, biramous appendages, gills

Subtopic:  Phylum Arthropoda |
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Which of the following is wrongly matched?

(1) Haemoglobin in mammals – RBC

( 2) Haemozoin – Plasmodium cytoplasm

(3) Haemocyanin – leeches

(4) Haemoglobin dissolved in blood – Pheretima

Subtopic:  Phylum Annelida | Phylum Mollusca |
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Which of the following is correct about nematocyst?

(1) It can be re-used.

(2) It is excretory organ in arthropods

(3) It is ejected on contact and pierce the prey

(4) None of these

Subtopic:  Phylum Coelenterata |
 72%
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Ambulacral grooves are absent in the living forms of the Class

(1) Crinoidea

(2) Asteroidea

(3) Ophiuroidea

(4) Echinodermata

Subtopic:  Phylum Echinodermata |
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Which of the following Phyla are included in Enterozoa?

(1) Annelida, Mollusca, Porifera

(2) Echinodermata, Hemichordata, Porifera

(3) Mollusca, Arthropoda, Hemichordata

(4) Porifera, Mollusca, Arthropoda

Subtopic:  Basis of Classification:I | Basis of Classification:II | Basis of Classification |
 63%
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Hydra receives impulses and stimuli through

(1) nerve net

(2) nematocytes

(3) sensory cells

(4) flame cells

Subtopic:  Phylum Coelenterata |
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Which one feature is common to leech, cockroach and scorpion?

(1) Nephridia

(2) Ventral nerve cord

(3) Cephalisation

(4) Antenna

Subtopic:  Basis of Classification:II | Basis of Classification |
 74%
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Based on cellular mechanisms there are two major types of regeneration found in the animals. Which one of the following is the correct example of the type mentioned?

(1) Morphallaxis - Regeneration of two transversel cut equal pieces of a Hydra into two small Hydras

(2) Epimorphosis - Replacement of old and dead erythrocytes by the new ones

(3) Morphallaxis - healing up of a wound in the skin

(4) Epimorphosis - Regeneration of crushed and filtered out pieces of a Planaria into as many new Planarians

Subtopic:  Phylum Coelenterata |
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Which one of the following groups of structures/organs have similar function?

(1) Typhlosole in earthworm, intestinal villi in rat and contractile vacuole in Amoeba.

(2) Nephridia in earthworm, Malpighian tubules in cockroach and urinary tubules in rat.

(3) Antennae of cockroach, tympanum of frog and clitellum of earthworm.

(4) Incisors of rat, gizzard (proventriculus) of cockroach and tube feet of starfish.

Subtopic:  Phylum Annelida | Phylum Arthropoda |
 77%
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