The active form of Entamaeba-histolytica feeds upon –
1. Mucosa and submucosa of colon only
2. Food in intestine
3. Blood only
4. Erythrocytes; mucosa and submucosa of colon

Subtopic:  Amoebiasis |
 60%

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Body having meshwork of cell, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:

1. Porifera 2. Mollusca
3. Protozoa 4. Coelenterate
Subtopic:  Phylum Porifera |
 83%

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Metagenesis refers to–
1. Alternation of generation between asexual and sexual phases of an organism
2. Occurrence of a drastic change in form during post-embryonic development
3. Presence of a segmented body and parthenogenetic mode of reproduction
4. Presence of different morphic forms

Subtopic:  Phylum Coelenterata |
 89%
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Which of the following diseases is caused by a protozoan?
1. Influenza
2. Babesiosis
3. Blastomycosis
4. Syphilis

Subtopic:  Common Diseases in Humans |
 52%

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Which of the following features is not present in the Phylum - Arthropoda?
1. Jointed appendages
2. Chitinous exoskeleton
3. Metameric segmentation
4. Parapodia

Subtopic:  Phylum Arthropoda |
 87%
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In case of poriferans, the spongocoel is lined with flagellated cells called :
1. ostia
2. oscula
3. choanocytes
4. mesenchymal cells

Subtopic:  Phylum Porifera |
 89%
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What is common between parrot, platypus and kangaroo?

 
1. toothless jaws 2. functional post-anal tail
3. ovoparity 4. homoiothermy
Subtopic:  Study of Aves & Mammals |
 79%
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Which one of the following pairs of animals comprises ‘jawless fishes’?
1. Guppies and hag fishes
2. Lampreys and eels
3. Mackerels and Rohu
4. Lampreys and hag fishes

Subtopic:  General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
 85%
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Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?

1. Reptilia: possess 3 - chambered heart with one incompletely divided ventricle
2. Chordata: possess a mouth provided with an upper and lower jaw
3. Chondrichthyes: possess cartilaginous endoskeleton
4. Mammalia: give birth to young one
Subtopic:  Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
 82%
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Uricotelic mode of passing out nitrogenous wastes is found in

1. reptiles and bird 2. birds and annelids
3. amphibians and reptiles 4. insects and amphibians
Subtopic:  Nitrogenous Excretory Products |
 84%

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