Give a detailed systematic position of wall lizard?

Q: Give the digrammatic representation showing Foot of frog?

A: A frog has four feets: The two front legs are called "hands"and have four toes each the other two…

Q: Give the digrammatic representation showing Reptilian claw?

A: The air-breathing vertebrate organisms are covered by a special skin of bony plates, scales, or a…

Q: What environment would you find an echinoderm?

A: Echinoderms have the following characteristics- 1. They are bilaterally symmetrical. 2. They have a…

Q: Give the digrammatic representation showing Vertical section through tooth of frog?

A: The teeth of frogs of conical in form. The teeth are meant for self-protection. Generally, frogs…

Q: Under which environments do echinoderms live?

A: Echinoderms are the animals that have no terrestrial or freshwater representatives. Echinoderms…

Q: Discuss in detail the external characters of Hemidactylus?

A: Hemidactylus belongs to the kingdom and phylum Animalia and Chordata respectively. They reside in…

Q: Enumerate and describe types of fish scales and give the animal source. (Explain in 1-3 sentences)

A: Fish scales are small, rigid plates that grow out of the skin of a fish. They provide protection…

Q: What are three derived characters of echinoderms? Describe each.

A: The group of multicellular and heterotrophic organisms belonging to the kingdom Animalia is called…

Q: Give an examples of phylum-echinodermata?

A: The organisms belong to phylum Echinodermata are marine animals. Their body has a star-like…

Q: Give the structure of eye or ear of lizard?

A: Lizards are reptiles which are belongs to the order Squamata. These are scaly-skinned reptiles which…

Q: Give the difference between frog and shark regarding the external characters?

A: The animals that bear notochord in any stage of their lifetime belong to chordates. Both frog and…

Q: Write ashort note on phylum-annelida?

A: Invertebrates are the animals that lack the backbone, like arthropod, mollusks, annelid,…

Q: Give differences between shark and frog regarding eye and ear?

A: Sharks are aquatic animals that belong to the cartilaginous category of class Pisces. The frogs are…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.