Animal Kingdom — Important Questions
ICSE · Class 11 · Biology
103 important questions from Animal Kingdom for ICSE Class 11 Biology, with answers. Includes multiple choice and true false questions.
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Important Questions from Animal Kingdom
Which vertebrate class has a cartilaginous skeleton?
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Chondrichthyes
Chondrichthyes (cartilaginous fishes like sharks and rays) have an entirely cartilaginous endoskeleton. Osteichthyes have a bony skeleton. Amphibia and Aves also have bony endoskeletons.
The 'water vascular system' is a unique feature of which phylum?
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Echinodermata
The water vascular system (also called the ambulacral system) is the UNIQUE and defining feature of phylum Echinodermata. It consists of canals filled with sea water and is used for locomotion, food capture, transport and respiration.
Petromyzon (lamprey) belongs to which class of vertebrates?
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Cyclostomata
Petromyzon (lampreys) and Myxine (hagfish) are the only members of class Cyclostomata — the jawless (agnathous) vertebrates. They have a circular sucking disc-shaped mouth without true jaws and are ectoparasitic on fish.
Which phylum has the jointed appendages and chitinous exoskeleton?
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Arthropoda
Arthropoda (arthron = joint; podos = foot) is defined by its jointed appendages and chitinous exoskeleton. The exoskeleton is shed periodically in a process called ecdysis (moulting). It is the largest phylum in the animal kingdom.
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