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Practice each question, then open the answer or worked solution.
Who introduced the system of scientific nomenclature of organisms
Answer is (b) Carolus Linnaeus
Explanation:
Carolus Linnaeus introduced binomial nomenclature, which is a simplified method of naming organisms. Binomial nomenclature gives each organism a scientific name that has two parts. The first part is a Genus, and the second part is Species.
Two-chambered heart occurs in
Answer is (b) fish
Explanation:
Amphibians have 3 chambered hearts. Aves and crocodiles have 4 chambered hearts.
Skeleton is made entirely of cartilage in
Answer is (a) Sharks
Explanation:
Sharks are cartilaginous fish, whereas Tuna and Rohu are bony fishes.
One of the following is not an Annelid
Answer is (d) Urchins
Explanation:
Urchins are Coelenterates
The book Systema Naturae was written by
Answer is (a) Linnaeus
Karl Von Linne was involved with which branch of science?
Answer is (b) Taxonomy
Real organs are absent in
Answer is (b) Coelenterata
Explanation:
Coelenterates have tissue-level organization hence they lack real organs.
Hard calcium carbonate structures are used as skeletons by
Echinodermata
Explanation:
Echinodermata is spiny skinned organisms which are exclusively free-living marine animals. They are triploblastic and have a coelomic cavity. They use a unique water-driven tube from moving, and they contain calcium carbonate structures which are used as a skeleton.
Differentiation in segmental fashion occurs in
Answer is (a) Leech
Explanation:
Leech belongs to Annelids, and it shows metameric body segmentation.
In a taxonomic hierarchy, family comes between
Answer is (b) Order and Genus
Explanation:
Taxonomic hierarchy
Species
Genus
Family
Order
Class
Phylum
Kingdom