What are the two main classes into which fishes are divided?

Q: Create a level of organization of all the parts of the tilapia fish.

A: Introduction - Tilapia is a fish that is solely found in Africa, and many states in the United…

Q: What class of Chordates is considered as the most advanced and highly specialized?

A: Phylum Chordata belongs to the Kingdom Animalia and includes all the vertebrates, i.e., animals with…

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: What is the giant freshwater stingray

A: INTRODUCTION giant freshwater stingray is the largest fish swimming in freshwater on earth.

Q: What is the main evolutionary novelty presented by annelids?

A: Lamarck coined the term Annelida for these ringed animals. He established this phylum as the first…

Q: In what ways are annelids important?

A: The organisms of the ecosystem have different features compared to the others. Classification is the…

Q: Which Animals Are Chordates?

A: Animals are multicellular eukaryotic organisms belonging to kingdom Animalia that are heterotrophic,…

Q: Discuss the evolutionary significance of lobe-finned fishes.

A: Lobe-finned fishes (Sarcopterygii) have a lobe in their fins. They have a paired fleshy pectoral and…

Q: What are Annelids ?

A: Phylum Annelida belongs to the kingdom Animalia. They are found in both aquatic and terrestrial…

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: Which body region of a crayfish is most obviously segmented?

A: Abdomen is the body region of a crayfish that is segmented.

Q: What are four shared derived characters of chordates?

A: Chordates are the animals with a vertebral column called ‘back bone’. The chordate animals are free…

Q: What is the importance of having swim bladders to aid in the sound production in fishes?

A: Q. What is the importance of having swim bladders to aid in the sound production in fishes? Fish are…

Q: What are four key defining characteristics of chordates?

A: Phylum Chordata is the third largest phylum. The animals belonging to this phylum are called…

Q: If snakes are limbless, how can they be consideredtetrapods?

A: The organisms of the ecosystem have significant properties. Depending upon the different features of…

Q: What are lobe-finned fishes ?

A: Fish are oceanic, craniate, gill-bearing creatures that don't have appendages with digits.  The…

Q: What are four distinguishing characteristics of chordates?

A: The four qualities of chordates are a notochord, dorsal, pharyngeal cuts (or pockets), and postanal…

Q: jawless fish What is the function of the notochord?

A: Ostracoderms are extinct fishes of Paleozoic. The first evolutionary character that appeared in…

Q: How is excretion done infishes?

A: The animals characterized by the presence of gills, absence of digits and digits, and reside in the…

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: Which structure of the ray-finned fishes allows for breathing in water while the fish is stationary?…

A: The fishes are found in the super class Pisces. They belong to chordates.

Q: Describe four characteristics shared by all jawed fishes.

A: Gnathostomes are the jawed vertebrates. Their diversity comprises 60,000 species that account for…

Q: What are the main featuresof fishes associated to thehabitat where they live?

A: Fishes are gill-bearing, craniate, aquatic vertebrate animals which lacks limbs and proper digits.…

Q: Which amniotes are endothermic? What are some advantages of endothermy?

A: An organism alludes to something living that has a coordinated design, can respond to boosts,…

Q: How are differences in the anatomy of lampreys andconodonts reflected in each animal’s feeding…

A: Lampreys are categorized into the category of Cyclostomata (jawless fishes), whereas Conodonts are…

Q: How do eggs of lancelet and lamprey differ?

A: Lanceletes commonly called amphioxus are marine living, small, eel like animals that belong to the…

Q: What is the classification of animals based on the feeding habit?

A: Animals are classified based on different criteria including the place they live in, the type of…

Q: Explain how lungfishes are adapted to survive out of water

A: Animals are multicellular organisms. Animals are member of the kingdom Animalia. Fish is an aquatic…

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: What are morphological structures of flatworms?

A: Flatworms are the soft-shell bodied, much flattened acoelomate worms, such as tapeworms, flukes etc.…

Q: What features distinguish annelids from roundworms?

A: Annelids and roundworms belong to the phylum non chordata of the animal kingdom. They do not have…

Q: What class do sea turtles belong? How do you know?

A: Vertebrates originated in the ocean. Land vertebrates descended from Bony fishesEvolved two pairs of…

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: Which do fish have instead of arms and

A: The aquatic animals have special organs to breathe in the water They also have special organs to…

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: What do non-parasitic lampreys do?

A: Lampreys are aquatic jawless vertebrates with an eel-like appearance. They are mostly found in…

Q: How do fishes breathe?

A: Introduction  Fishes are the aquatic animals which either live on surface or in the water. Unlike…

Q: What are the structural adaptations of freshwater leech from marine ones?

A: Leeches fall under the Phylum Annelida. They are segmented parasites, meaning, they derive their…

Q: How temperature influence distribution of fish?

A: Fish can be defined as the type of living organism which lives in the water. They are present in…

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 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: What are some advantages of freshwater clams producing parasitic larvae that attach to the gills of…

A: Glochidia, parasitic larvae of freshwater clams, attach themselves to the gills and skin of fish.

Q: How do ammocoetes and adult lamprey differ?

A: In morphology and behaviour, the larval stage of the primitive lamprey, known as an ammocoetes…