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प्रश्न
Two chambered heart occurs in
विकल्प
crocodiles
fish
aves
amphibians
उत्तर
fish
Explanation -
Fish (Class Pisces) have a two-chambered heart with an atrium and a ventricle (exception being lungfish which have a three-chambered heart). Amphibians (Class-Amphibia) and reptiles (except crocodiles and their relatives) have three-chambered hearts with two atria and one ventricle. Crocodiles and birds (Class-Aves) and mammals have four-chambered hearts with two atria and two ventricles.
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संबंधित प्रश्न
Assertion: Identification, assortment and grouping are essential for classification
Reason: These are basic steps of taxonomy
Artificial system of classification is based on a few characters of the plant.
Define taxonomy.
A group of organisms having similar traits of a rank is ______.
Every unit of classification regardless of its rank is ____________.
Plants without well differentiated stem, root and leaf are kept in ______.
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Torpedo, Sting ray, Dogfish, Rohu, Angler fish, Exocoetus.
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Name the types of classification.
What is an artificial system of classification?
