What are two noticeable morphological differences between the sharks and ray-fin fishes? What is the main difference (not noticeable) between the sharks and ray-finned fishes

Q: Label the following regions and parts on the diagram: • Anterior end • Posterior end • Dorsal…

A: Dorsal fins are located on the back ( upper surface facing towards the sun) , there are two types of…

Q: Find a fish of the body types listed below. Not all fishes can be described by one of these terms.…

A: Answer : Adaptation is an important survival skill in all species. Adaptations are changes an…

Q: Ray-finned fishes & Lobe-finned fishes

A: Ray-finned fish, are one of the two major clades of bony fish (Osteichthyes)  the lobe-finned fish,…

Q: What is lateral line system ?which role by this system of organ in different aquatic organism?

A: The Lateral-line system is made of neuromast sensory cells and is distributed across the fish body.…

Q: Alternating red and black stripes are _______________ to the tan stripe that extends along the…

A: Anatomical terms are used to describe the positions of various structures. Directional terms like…

Q: Only eight species of lobe-finned fishes are alive today, remnants of a group that flourished in the…

A: The Devonian Period occurred from 416 million to 358 million years ago. It was the fourth period of…

Q: What does a great white shark,eel and African tiger fish have in common? list all  the…

A: Great White Shark: The great white shark is found on the coastal surface of all oceans. The…

Q: What is meant by homologous structures? What is meant by serial homology, and how do crustaceans…

A: The structures present in different organisms which are anatomically similar but functionally…

Q: In the phylogenetic tree above Sharks are most closely related to which other taxa? 6) Which…

A: Visual representation of the relationship between different organisms, showing the path through…

Q: axonomic characters of Jaguar include the following General External Morphology Special Structure…

A: Kingdom: AnimaliaPhylum: ChordataClass: MammaliaOrder: CarnivoraSuborder: FeliformiaFamily:…

Q: What type of evolution explains the similarity in penguins, dolphin, and shark fin similarity?

A: The process of slow and gradual change over a period of time is called evolution. Organic evolution…

Q: What are the advantages of having variation in scales of reptiles, feathers of birds and mammalian…

A: Every living creature has a covering (skin) that protects it from its surroundings. This coating is…

Q: Is there any genetic evidence linking lobe-finned fish and amphibians

A: Lobe-finned fishes and amphibians are closely related and connected through a common ancestor which…

Q: What feature separates the Chondrichthyans (sharks and rays) from the lobed-finned fishes? O some…

A: The class Chondrichthyes has two subclasses: the subclass Elasmobranchii (sharks, beams, skates, and…

Q: Kindly LIST the integumentary organs of the following representative chordates. Please answer direct…

A: Introduction The integumentary organs includes skin, hair, nails and glands. It  forms the outermost…

Q: Are the limbs modified into wings of bats and the wings of birds examples of evolutionary analogy or…

A: Homologous organs are defined as the organs of different species that are having a similar structure…

Q: Why are the lung fish considered to have a common ancestor with amphibians

A: Rhipidistian freshwater fish belonging to the Dipnoi subclass are lungfish. Lungfish are best…

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: what morphological features are present retained by both descendants of marbled salamander and…

A: Evolution is descent with modification. All organisms, somewhere during the course of evolution,…

Q: What are the distinctive characteristics of Rattus mindorensis in the following taxon: Kingdom -…

A: Rattus mindorensis is a muroid rodent. Taxonomically, it is a part of Kingdom Animalia and Phyllum…

Q: Which of these is found in all deuterostomes?     3 tissue layers     a notochord     a dorsal…

A: Deuterostomia, (Greek: “second mouth”), group of animals include those of the phyla Echinodermata…

Q: What derived characters do sharks and tuna share? Whatfeatures distinguish tuna from sharks?

A: Pieces are true, jawed vertebrates with specific organs for respiration, excretion and blood…

Q: Compare the features of the sea urchin and sea cucumber to each other and to the starfish. Do all…

A: Sea urchins are echinoderms that are typically spiny, globular animals, belonging to the class…

Q: Taxonomic characters of Civet Cat include the following General External Morphology Special…

A: Definition: A taxonomic character is any characteristic feature of a member of a taxon by which it…

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: Differences between vertebrates and other chordates include all of the following except:   other…

A: Chordata is an animal phylum. Chordates are characterized by presence of a dorsal hollow nerve cord,…

Q: 1. Alternating red and black stripes are _______________ to the tan stripe that extends along the…

A: Some have unique physiological features which make them different from other surrounding organisms.…

Q: by comparing and contrasting the physical features of a shark, guitar fish and the sting ray, what…

A: We all know that the largest shark is the whale shark (Rhiniodon typus) with length of 13-39 ft and…

Q: Draw a cladogram for the animals: Amphioxus; Lamprey; an osteostracan( derived ostracoderm); Reef…

A: phylum chordata has dorsal nerve cord, notocord, pharyngeal gill silts, anal tail

Q: what synapomorphic characteristic body plan is or has first appeared with the annelids?

A: Synapomorphic characters are those which are shared by two or more taxa.  It is derived from…

Q: Now, assume that tuna and dolphins are sister species. Redraw the phylogenetic tree accordingly. Use…

A: Biologists demonstrate life’s diversity in the form of phylogenetic trees which is also known as…

Q: the common ancestor of Cnidarians were an open-ocean jelly fish, what would you infer regarding the…

A: Cnidarians is a phylum which comes under the main classification animilia  They are aquatic animals…

Q: Which of these pairs are examples of analogous structures? Select all that apply.       Butterfly…

A: Analogous structure means the structures that have similar function in unrelated species.

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 ones are synapomorphies of the chordates and which ones are symplesiomorphies based on this…

A:

Q: Why are “reptiles,” as traditionally defined, a paraphyletic group? How has cladistic taxonomy…

A: Reptiles are the cold-blooded animals that are characterized by dry scaly and impermeable skin. They…

Q: What similarities are present in birds and reptiles in terms of their external features?

A: Birds are parrot, owl, penquinn, albatross,  Swift and many more whereas some of the examples of…

Q: What does radial symmetry means? What is the type of symmetry found in chordates? Which are other…

A: The animals are the most abundant living organism that is found in almost every habitat. They have…

Q: Based on the phylogenetic tree shown, which animals are most closely related to lizards? Placentals…

A: A phylogenetic tree or evolutionary tree is a branching diagram or ‘tree’ showing the evolutionary…

Q: Identify the anatomical microscopic parts (label the distinct parts in the slide specimen) of…

A: Amphibians are those vertebrates that can live in both land and water ecosystem and it includes…

Q: What types of molecular and morphological changes occurred along the different branches that led to…

A: Answer: Introduction: Tetrapods (means four limbs) evolved from a group of animals called as the…

Q: Make a cladogram that includes the following groups of fishes: chon-drosteans, elasmobranchs,…

A: The cladogram is a diagrammatic relationship between species. But it didn’t represent an…

Q: What does the image say about the bones in the fins of fish (on the left side) when compared to the…

A: Tetrapods evolved from a finned organism that lived in the water.  The common ancestor of all those…

Q: What would be present in Spongebob's poriferan skeleton? Specify the chemical composition as well as…

A: The SpongeBobs poriferan Skeletal  structure  are containing spicules and spongin fibres. Skeleton…

Q: Why do you believe squid received the name cephalopod, which means head-foot? What distinguishes the…

A: Hi dear, here's your answer. The name cephalopod, in Greek, means that "head foot." This name was…

Q: Give the shared characteristics of the following animal groups: 1. Cartilaginous fishes &…

A: Ray - finned fishes are also known as Bony fishes . According to the guidlines of bartelbey i am…

Q: Which of the following is NOT a characteristic of all fish?   A. aquatic life.   B. gills as…

A: Given: Characteristics of Fish- Fish belongs to Animalia kingdom,Phylum-Chordata and…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.