JIPMER2006BotanyAnimal Kingdom

Which of the following character is present essentialy in chordates ?

Options

AVentral spinal chord
BDorsal heart
CPharyngeal gill slits
DBlood flow in forward direction in ventral blood vessels

Correct answer

C. Pharyngeal gill slits

Step-by-step solution

Chordate animals, at some time in their life history, exhibit the following three diagnostic charcters : (1) Presence of notochord. (2) Presence of dorsal tubular nerve cord. (3) Presence of gill clefts during development. Beside these, some other characters are : (4) Ventral heart. (5) Hepatic portal system.

Practice Animal Kingdom on Quantrex Academy →

More from Animal Kingdom

Given below are two statements : Statement I : The class name Reptilia refers to creeping or crawling mode of locomotion. Statement II : All organisms belonging to Reptilia have th 2026 Select the incorrect statements from the following : A. Digestive system in Platyhelminthes is incomplete. B. Bilateral symmetry is a characteristic feature of adult Echinoderms. C 2026 Which of the following is not a characteristic of chordates ? 2026 Match List I with List II : List I List II A. Molluscs I. Pulmonary respiration only B. Reptiles II. Branchial respiration C. Adult amphibians III. Cellular respiration D. Amoeba I 2026 A group of researchers procured some fish-like animals and upon investigation the following characters were observed : A. Endoskeleton was made of cartilage. B. Ectoparasitic, as t 2026 Select the set of fishes which belong to the class Osteichthyes : 2026 The flightless bird with forelimbs modified as paddle-like structures suited for swimming is known as : 2026 Given below are two statements : Statement I : When any plane passing through the central axis of the body divides the organism into two identical halves, it is called radial symme 2026 Full Animal Kingdom list All JIPMER PYQs