In this article we will discuss about the meaning and classification of chordata. Meaning of Chordata: The Chordata (chorde = cord) includes well-known animals such as lampreys, fishes, amphibians, reptiles, birds and mammals. They also include protochordates such as balanoglossus, ascidia and amphioxus. All chordates possess a notochord at least for some time in their […]
Chordata: Meaning and Classification | Zoology
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Dissection and Structures of Different Types of Fishes | Zoology
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In this article we will discuss about the dissection and structures of different types of fishes. 1. Placoid Scale of Shark: Placoid scales are found in elasmobranchs. Preparation: Cut a small piece of skin from the dorsal surface of a shark (Scoliodon). Put it in a hard glass test tube containing 5 to 10% KOH […]
Dissection of Frog and Toad | Zoology
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In this article we will discuss about the dissection, structure and salient features of frog and toad. 1. Hyoid Apparatus of Frog and Toad: Rana sp. (Frog); Bufo sp. (Toad) The hyoid apparatus of frog and toad are almost similar in structure. They occupy the same relative position. Preparation: Remove the skin of the ventral […]
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