Define dorsal hollow nerve cord in phylum?

Q: Name the copulatory organs of Scoliodon?

A: Scoliodon is a genus of requiem sharks that belongs to the family Carcharhinidae. It is also called…

Q: Describe the structure of the skin of a lizard?

A: Reptiles are a group of cold-blooded animals which have skins covered with small hard plates called…

Q: Describe the brain of lizard?

A: Step 1 Reptilia is a class of poikilothermic amniotic creeping or crawling tetrapods which possess…

Q: Give the digrammatic representation showing Muscles of frog in lateral view?

A: Frogs belong to the carnivorous group of amphibians characterized by a short body, tailless body.…

Q: jawless fish Where is the nerve cord located? Be precise.

A: The jawless vertebrates belong to the subphylum Vertebrata under the section Agnatha. The…

Q: Differentiate between antheridia and archegonia.

A: The sexually reproducing organisms mostly have specific structures or organs involved in the process…

Q: Name the type of regeneration shown by wall lizard?

A: Wall lizards have the capability to regenerate their tails.They have certain set of genes that aids…

Q: Identify the common name of the structures pictured below

A: We all know that angiosperms can reproduce sexually by forming male and female gametes.Male gametes…

Q: Name the specialized skin structure of the class Mammalia.

A: Class Mammalia belongs to the division Vertebrata of the phylum Chordata of the animal kingdom. They…

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: Write the name of second largest animals in phylum?

A: The term Molluscs stands for "Soft", so it is the phylum dedicated to the soft body animals.

Q: Tabulate the difference between frog and shark regarding the skin?

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

Q: What structures play a role in protecting vertebrate central nervous tissue?

A: Definition of CNS The brain plays a central role in the control of most bodily functions, including…

Q: How is the nervous tissue distributed in cnidarians?

A: Cnidarians are soft-bodied carnivorous animals. Cnidarians are classified into different groups such…

Q: Give the digrammatic representation showing Blood-corpuscles of Frog?

A: Amphibians:   They are small vertebrates and almost live in a moist environment. They have special…

Q: Give a short note on the muscular system of frog?

A: Frogs are amphibians belong to order Anura that belongs to family Ranidae. Frogs are the member of a…

Q: In which organism grasping was completely lost?

A: Grasp is the act of holding with the hand. In zoology, it is precisely known as prehensility. The…

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.