How different are therespiration in fishes and therespiration in adultamphibians?

Q: what are merodiploids?

A: When a mutation is first identified, it is not possible to find if it has gained or loss of…

Q: What is the tissue origin of the following: Placoid Scales Cosmoid Scales Ganoid scales Cycloid…

A: scales in fishes.

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: Draw the structure of scoliodon and pristis?

A: The Scoliodon (dogfish) and the Pristis (sawfish) are the cartilaginous fishes that belong to the…

Q: What is the phylum of scoliodon?

A: Introduction  Scoliodons are commonly called as Shark or Dogfish. They come under kingdom animalia.…

Q: What is the difference between structural colors and colors based on pigments? How do the…

A: Colors of animals tend to be dramatic and vivid while serving as crucial marks of recognition, for…

Q: Explain in detail the external characters of Scoliodon?

A: Class Chondricthyes includes the cartilaginous fishes. The fishes bear endoskeleton made up of…

Q: Which areas of the rat’s body are not covered with hair?

A: Rats belong to the kingdom Animalia, order Rodentia. They are medium-sized rodents of the genus…

Q: What does Hemidactylus mean?

A: Geckos are reptiles and are found on all the continents except Antarctica. These colorful lizards…

Q: ANSWER THE FOLLOWING GUIDE QUESTION:  a) Do snakes shed or molt? briefly explain. b) Are feathers…

A: Every animal has their own way for protection. Some animals sheds their body when grown old.…

Q: What is ring of setae?

A: Setae are present in the earthworms, a member of Annelida. The name, itself, means 'little rings'.…

Q: Difference between gamosepalous and polysepalous?

A: Angiosperms are called flowering plants. The flower is the reproductive part of the angiosperm. A…

Q: Discuss the adaptions of Scoliodon?

A: Scoliodon is commonly known as Spiny Dogfish. It is a marine animal which has acquired many…

Q: Does mollusk have a (A) skin or (B) epidermis as its intergument? Also, what is its intergumentary…

A: Introduction Molluscs are invertebrate organisms belonging to the phylum Mollusca. These have soft…

Q: Are any areas of the frog zygote more darkly pigmented than other areas?

A: Yes , the animal pole is darkly pigmented.

Q: What type of scale is found in Scoliodon?

A: Scoliodon is a marine shark , also known as Dog fish due to it's dog like protruded snout . Phylum…

Q: What is the role of cuticle of in the body of cockroaches?

A: Insects are the invertebrate organisms which are the largest group in the arthropoda phylum. The…

Q: What is the function of bud scales?

A: Vegetative reproduction (otherwise called vegetative proliferation, vegetative increase or cloning)…

Q: What are the features used to identify a male cockroach from a female cockroach?

A: Cockroaches are insects which also includes termites. They belong to kingdom-Animalia. About 30…

Q: Which part of opuntia is modified to form spines?

A: Plants do not show locomotion, so in order to survive in the environment, they undergo several…

Q: Where are the nuchal lines located? What is their function?

A: The nuchal lines of the occipital bone are where many muscles and ligaments of the neck and back…

Q: What happens to the tail of an Adolescent frog before it is a fully grown adult?

A: Answer: When the tadpole reaches the froglet stage, it is almost a full adult. At this point, the…

Q: What is tegmina of cockroach?

A: Cockroaches are the group of insects that comes under the order Blattodea. They are the most…

Q: What’s a notochord?

A: Step 1 Kingdom Animalia or metazoan includes all animals of the two-kingdom classification except…

Q: What is the term to describe the bacterial morphology illustrated by the picture?

A: Bacteria are microscopic, unicellular prokaryotes that belong to the domain Bacteria. Numerous…

Q: Which type of tail is present in Scoliodon?

A: Fishes are gill-bearing aquatic vertebrate animals. The earliest organisms that can be first…

Q: What is clasper in scoliodon?

A: Scoldion or the Dogfish belongs to the shark family.

Q: What are the integumentary organs of chordates?

A: The majority of chordates possess backbones.  Chordates have a diverse range of species. Chordata is…

Q: Briefly explain the genetic determination of biramous and uniramous appendages.

A: Arthropoda phylum is more often known for the appendages found in the species of these groups. The…

Q: What change occurred in the shape of the horse from Hyracotherium to Equus?

A: Introduction  Horses are evolved in North America. Primary centre for horse evolution were great…

Q: Describe the structure, function, and location of thetonsils.

A: Introduction: The lymphoreticular system is responsible for immune response, and it comprises…

Q: How do shark and frog differ regarding their skin?

A: Shark and frog both belongs to phylum Chordata.  Shark belongs to class Chondrichthyes and frog…

Q: What is the difference between Labeo and Scoliodon?

A: Fishes are gill bearing aquatic animals that belong to the kingdom Pisces and phylum chordates. They…

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.