Q: What is the relationship among tunicates, lancelets, and the vertebrate chordates?
A: Chordates are animals that contain backbone or notochord. Animals that lack the notochord or…
Q: What is a jawless vertebrate-petromyzon with its structure?
A: Jawless fishes are otherwise known as "Agnatha" and it is a superclass of the phylum Chordata. These…
Q: List and describe the characteristics that fishes have incommon.
A: VERTEBRATES:- These are those organisms that are without any strong structural support means…
Q: What is the movement of lizard called?
A: Lizards are one of the common examples of reptiles. Most of the members are legless and quadrupedal…
Q: What features do all roundworms share?
A: Phylum Nemathelminthes or Aschelminthes belong to the animal Kingdom consist of roundworms. The word…
Q: How do fishes do gasexchange?
A: Fish are gill-bearing aquatic cranite animals that lack limbs with digits.
Q: . What are the major types of cartilaginous and bony fishes?
A: A chordate is a creature of the phylum Chordata. During some time of their life cycle, chordates…
Q: What features distinguish the two classes of annelids, and wheredo members of each group live?
A: Annelids are true-segmented worms. They belong to the phylum Annelida. They are usually found in…
Q: How different are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need…
A: The Chondrichthyes include rays, sharks, and skates that have a cartilaginous skeleton with calcium…
Q: Give the differences between lancelet and lamprey with regard to the external characters?
A: Lancelets belong to a class of Cephalochordata, primitive chordates. They are small animals usually…
Q: Define about Fishes: Evolution of the Jaw ?
A: An aquatic vertebrate that bears gills for respiration and lacks limbs with digits is called fishes.…
Q: What are lobe-finned fishes ?
A: Fish are oceanic, craniate, gill-bearing creatures that don't have appendages with digits. The…
Q: What similarities do birdsand reptiles share regardingexternal coverage,reproduction and excretion?
A: Birds are the warm-blooded vertebrate animals constituting the class aves. They are characterized by…
Q: What is the type of digestion that occurs in cnidarians?
A: Cnidarians are a phylum which comes under the kingdom animalia.
Q: Describe four important characteristics of fishes.
A: Fish are vertebrates, aquatic animals belonging to the phylum Chordata in the animal kingdom. They…
Q: How do lobe-finned fishes differ from ray-finned fishes, and why were the ray-finned forms unlikely…
A: Lobe-finned fishes and ray-finned fishes are osteichthyes, popularly referred as bony fish . They…
Q: What are Bony Fishes ?
A: Fishes can also be classified into two types based on the type of skeletons ,they are Osteichthyes…
Q: What external anatomical features of amphibians are associated with their dual life on land and in…
A: The word amphibian is a Greek word “amphi” and “bio”. “amphi” means dual or both kinds and “bio,”…
Q: How do annelids feed, exchange gases, and move?
A: Annelids are the phylum of animal kingdom that represent the segmented body also known as segmented…
Q: What is/are the major comparison(s) between the tunicates and bony fish?Are tunicates inverterbrate…
A: Tunicates are marine invertebrates that belong to the Tunicata subphylum. They are members of the…
Q: How does the swim bladderof fishes work allowing fishesto control their depth underwater?
A: Fishes are vertebrate animals belongs to the family of Pisces. Fishes are aquatic organism’s lives…
Q: Give the role of pharynx in larval and adult lamprey?
A: The jawless vertebrates belong to the subphylum Vertebrata under the section Agnatha. The…
Q: What is/ are the major comparison(s) between the tunicates and bony fish? Are tunicates…
A: Tunicates belong to sub phylum urochordata. These are marine animals. They have an outer covering of…
Q: What is the purpose of gill slits?
A: Gill slits are defined as the individual openings to the gills which lack a single outer cover.…
Q: Describe the early jawed fishes.
A: According to the J. Z young of classification chordata has two superclass Agnatha ( jaw less ) and…
Q: Why swim bladders are important in sound production of fishes?
A: A gas filled sac usually along the dorsal wall of the bony fishes . It is an outgrowth of the…
Q: How does segmentation and having a fluid-filled body cavity confer certain advantages to annelids…
A: Segmentation in annelids is highly adaptive. Annelid body is made of repeating units or segments…
Q: Define paired pharyngeal gill slits?
A: The chordates are the members of phylum Chordata. They include humans and various other vertebrates.…
Q: What are morphological structures of flatworms?
A: Flatworms are the soft-shell bodied, much flattened acoelomate worms, such as tapeworms, flukes etc.…
Q: Describe the coelom of a bony fish?
A: Coelom is a fluid-filled body cavity found in metazoans between the body wall and gut wall. It…
Q: What are the ages of fish?
A: The Devonian time is considered as the age of fishes, this time is around 415 to 355 million years…
Q: What class of bony fish and what is the scientific name of the Tilapia? Are Tilapia ray-finned or…
A: Tliapia is a common name for many species of fish belonging to the family Cichlidae (order…
Q: How many gonads are found in lancelet and lamprey?
A: Gonad of an organism refers to the reproductive or sex gland that produces both the gametes and sex…
Q: How has paedomorphosis been important to evolutionary diversifi-cation of salamanders?
A: Phylogenetic evolutionary history consists of the analysis of the sequences of the common ancestors…
Q: What are the two main classes into which fishes are divided?
A: Vertebrates comprise all species of animals within the subphylum Vertebrata. A vertebrate have a…
Q: Give differences between the lancelet and lamprey regarding gill slits?
A: Lancelets commonly called amphioxus are marine living, small, eel like animals that belong to the…
Q: How do fishes breathe?
A: Introduction Fishes are the aquatic animals which either live on surface or in the water. Unlike…
Q: What is the morphological characteristic that evolutionarily approximates the beings of the phylum…
A: Annelids are defined as triploblastic, bilaterally symmetrical, metamerically segmented, acoelomate…
Q: Where do kinorhynchs live?
A: Kinorhynchs are tiny, spiny, clear, yellowish or reddish worms. They usually have 13 body segments:…
Q: How do jelly fishes locomote?
A: Jellyfishes are marine organisms that belong to the kingdom Animalia, and there are many kinds of…
Q: How many gill slits are present in Scoliodon?
A: Scoliodon or shark belongs to class Chondrichthyes. Their skeletons made up of cartilage rather…
Q: How are the excretory systems of the three main arthropod classes constituted?
A: Arthropoda- These are invertebrate animals equipped with jointed appendages. It is the largest…
Q: How do the lancelet and lamprey differ in digestive tract and respiratory system?
A: Lancelet and lampreys are the vertebrate subgroups having a gelatinous body with dorsal nerve cord,…
Q: Tabulate differences lancelet and lamprey with regard to their habits , external characters, muscles…
A: Lamprey and Lancelet belong to Vertebrata of the phylum Chordata and fish-like Cephalochordata.
Q: How do ammocoetes and adult lamprey differ?
A: In morphology and behaviour, the larval stage of the primitive lamprey, known as an ammocoetes…
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