How different are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need to agitate their body to swim while bony fishes do not?

Q: Name four ways in which external anatomy of bony fish are adapted to their watery environment

A: Bony fishes are more popularly known as Osteichthyes. Their skeleton is made up of bone tissue and…

Q: What structures of chelicerates are analogous to the antennae of chilopods (centipedes) and other…

A: Introduction: Chelicerates fall under the category of arthropods and consists of scorpions, spiders,…

Q: What type of symmetry do the Echinoderms have? Do they have this type of symmetry their entire…

A: Echinoderms or spiny skinned animals belong to the phylum Echinodermata. They are marineand…

Q: How do tunicates and lancelets get food? Are there other chordates that you are aware of that feed…

A: Introduction:- A lancelet species belonging to the Cephalochordata subphylum. Myomeres, which are…

Q: What are the features that result in tunicate’s being classified as an animal, chordate and…

A: Urochordata are also known as tunicates because outer body of tunicates is covered by tunic which is…

Q: Lampreys Sharks Lungfish Amphibians Land vertebrates Tetrapoda Choanata Fingers and toes What is the…

A: The above diagram is called phylogenetic tree. Phylogenetic tree show the evolutionary relationship…

Q: Amphioxus does not possess a vertebral column? yes or no?

A: Amphioxus  They are also known as lanceolate and belonging to the group of invertebrate animals.

Q: What are the lateral linesof fishes?

A: Vertebrates comprise all species of animals within the subphylum Vertebrata. Vertebrates include…

Q: How are the echinoderms significant to the marine environment? Relate some (at least two) of their…

A: Echinoderms -- Echinoderms are the members of the phylum Echinodermata . Animals have numerous…

Q: What levels of organization do chordates have that sponges do not?

A: The level of organization from simplest to the complex are Cell, tissue, organ, organ system.

Q: This is a basal gnathostome more closely related to bony fishes O Dunkleosteus O Geotria O…

A: Gnathostomes meaning “jaw-mouths” are vertebrate organisms possessing jaws. The jaw development was…

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: How can brachiopods be distinguished from bivalves?

A: Invertebrates are organisms in which backbone is absent . It includes :-  A ) Arthropods  B )…

Q: What features of typical amphibians prevent them from living entirely on land?

A: Amphibians are the organisms which are vertebrates as they possess distinct backbone. They live…

Q: What are shared characteristics that are found in clams? Notable cephalization O Coelomates…

A: Clam is a common name for several kinds of bivalve molluscs. The word is often applied only to those…

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: Members of Phylum Chordata (Chordates) All of the above All have gills as adults Display gill slits…

A: Chordates are animals which are more complex than others.  They are found in large numbers .

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: Why is the occurrence ofeyelids in amphibians incomparison to their absence infishes an adaptation…

A: Amphibians belong to the phylum Chordata. They are vertebrate tetrapods. This group includes frogs,…

Q: What morphological evidence suggests that nemerteans are typical coelomates?

A: Phylum Nemertea commonly called ribbon worms are bilaterally symmetrical, unsegmented organism that…

Q: What are differences between arm and tentacles of squid? Explain.

A: Squids & octopuses are commonly confused for one another for a reason. Because, they're both…

Q: What sarcoptergians or lungfish (if any) are related to amphibians?

A: Ans. In the superclass Tetrapoda ("four limbs"), the vertebrate community that has left the Sea for…

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: Threespine sticklebacks that invaded freshwater lakes have lost their pelvic spines. What other…

A: Threespine sticklebacks (Gasterosteus aculeatus) are commonly found in the ocean. They are…

Q: Explain two peculiar features of the body-wall muscles in nematodes.

A: Nematode is any unsegmented worm that belongs to the phylum Nematoda. The nematodes are commonly…

Q: Members of Chondrichthyes differ from members of Osteichthyes by having (a) ________. a. jaw b. bony…

A: Fishes are divided into three classes:- 1) CRANIATES that are jawless fishes. 2) GNATHOSTOMES that…

Q: What character does the term rhizarian indicate about the forams and actinopods?

A: Rhizaria are an ill-defined, species-rich supergroup consists mostly of unicellular eukaryotes.…

Q: How are the echinoderms significant to the marine environment? Relate at least three of their…

A:

Q: Differentiate the following according to their anatomical characteristics. Give at least five…

A: INTRODUCTION  The Chondrichthyes is the category of bony fish and mainly their exoskeleton  is…

Q: Offer a description of an adult tunicate that would identify it as a chordate, yet distinguish it…

A: Chordates belong to the phylum Chordata.The Chordates in their full life cycle have one of the…

Q: Compare the body plan of Dugesia and cnidarians. Aside from differences in symmetry, what other…

A: Thank you for the question  Answer :Dugesia belong to phylum Platyhelminths.  The features seen in…

Q: How do the skin and respiratory systems of amniotes differ from those of their early tetrapod…

A: Amniotes belongs to the kingdom Animalia and phylum Chordata. They belong to the clade of tetrapod…

Q: invertebrate chordate. Which of the following would ensure that you are indeed looking at a…

A: A vertebrate is an animal with a spinal cord surrounded by cartilage or bone. The word comes from…

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: Echinoderms are characterized by their spiny skin. What are these spines made of, and from what do…

A: Echinodermata are marine organisms with organ system level of organization. The adult echinoderms…

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: How does Anterior posterior axis gives chordate and higher non chordates a bilateral symmetry

A: Organisms having bilateral symmetry have a single plane of symmetry. The plane is called sagittal…

Q: Poriferans and cnidarians do not have excretory systems. Do platyhelminthes have an excretory…

A: Poriferans are generally known as sponges. The sponges are separated from the metazoan by an early…

Q: What functional problem results from torsion? How have gastropods evolved to avoid this problem?

A: The shell is first formed in the veliger larval stages of gastropods. This larval stage has two…

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: How are tunicates and lancelets different than most other chordates?

A: All the organism of phylum Chordata has a structure called notochord at some point. During the…

Q: make an 500 words of rationalization of bony fishes

A: Given:  rationalization of bony fishes.

Q: Examine this whole mount of Branchiostoma (amphioxus) What is the function of this notochord? What…

A: It is an example of marine invertebrate-lancelets. Falls under phylum Chordata and subphylum…

Q: Sessile adult tunicates lose the notochord; what does this suggest about one function of this…

A: A tunicate larva has the notochord, nerve cord, and tail. After few days of swimming after hatching,…

Q: The flexibility inherent in a segmented body plan was clearly important to crustacean evolution, but…

A: Evolution is the change in the heritable characteristics of organisms over successive generations.…

Q: What are similarities exist among Lycopods and horsetails? What are some of the differences

A: The kingdom Plantae includes land plants and green algae. Based on the presence or absence of a…

Q: In what ways were therapsids adaptively superior to the amphibians and reptiles that preceded them?

A: Therapsids are the ancestors of present-day mammals and their related ancestors. They represent an…

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.