Botany - Animal Kingdom Question with Solution | TestHub
Which one of the following is incorrectly matched with its characteristic and the taxon?
| Animal | Characteristics | Taxon | |
| (I) | Trygon | Poison sting | Chondrichthyes |
| (II) | Scoliodon | Ampulla of Lorenzini | Chondrichthyes |
| (III) | Exocoetus | Pectoral fin is large | Osteichthyes |
| (IV) | Hippocampus | Parental care | Chondrichthyes |
Options:
Answer:
Solution:
Trygon and Scoliodon both belong to the class Chondrichthyes of super class Pisces, Subphylum Vertebrata of Phylum Chordata which possess cartilaginous endoskeleton. Notochord is persistent throughout life in Chondrichthyes and possess a ventrally placed mouth. Skin contains minute placoid scales. Trygon possesses poison sting and is commonly known as sting ray. Scolidion possesses special electro receptors known as Ampulla of Lorenzini. They both are poikilothermous animal with two chambered heart. Exocoetus and Hippocampus also belong to Phylum Chordata Subphylum Vertebrata Superclass Pisces but class Osteichthyes. Exocoetus also known as flying fish possesses a large pectoral fin and Hippocampus commonly known as Sea horse exhibit a special feature of parental care where the male partner takes care of the eggs until hatching.
