What is meant when it is said that beings of the phylum Annelida are vascular beings? From which other phyla of the animal kingdom does this feature differentiate them?

Q: Discuss the body plans exhibited by the crustaceans that are also shared by all other arthropods.…

A: The word arthropod is a combination of two Greek words - arthro meaning jointed and pod meaning…

Q: Compared to other actinopterygians, teleosts _____. reach sexual maturity later in life and live…

A: Actinopterygian refers to bony fishes which appeared during the Triassic period (50.6 million years…

Q: Most insects have wings. Which is the other animal phylum that contains creatures with analogous…

A: Insects is a class of Arthropods. Organisms of this class belongs to the subphylum Hexapoda and…

Q: Give the function of the external and internal anatomy of an Arthropods: External 1. Head 2.…

A: Arthropods play a part in all aspects of an ecosystem's consumer functions, whether they eat plants…

Q: Give the literal meaning of the name Gymnophiona. What animals are included in this amphibian order,…

A: Gymnophiona is an order species which comes under class amphibian, which in turn comes under phylum…

Q: How can the features of the arthropod exoskeleton explain the terrestrial adaptation of some species…

A: The phylum Arthropoda is characterized by the presence of jointed legs, a segmented body, and an…

Q: Briefly describe the distinguishing morphological features of each of the following: eurypterids,…

A: Eurypterids, horseshoe crabs, and pycnogonids are classified under the Subphylum Chelicerata. In…

Q: Concerning tissue complexity how different are cnidarians from poriferans?

A: Poriferans and Cnidarians are organisms belonging to the Animal Kingdom. Phylum Porifera are also…

Q: Is the nervous system in platyhelminthes more or less sophisticated than in cnidarians? What are the…

A: Planarians includes flatworms that belong to the Class Turbellaria. These are free-living organisms…

Q: compare cnidarians to sponges and to the clade containing flatworms, mollusks, and annelids. What…

A: RH Whittaker gave the five-kingdom classification of living organisms. He used several factors to…

Q: Some evidence suggests that members of Acoelomorpha constitute the sister group for all other…

A: Acoelomorphs are small, flatworms whose length is less than 5 mm. This group comprises around 350…

Q: What phyla of animals are most closely related to the chordates?

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

Q: From which diapsid subgroup have crocodilians descended? What other major fossil and living…

A: An organism is any individual entity that embodies the properties of life. Organisms are classified…

Q: What features are common to animals specifically invertebrates without well-developed circulatory…

A: Circulatory system can be described as the system which helps in circulating the blood and lymph…

Q: What are the reason that you can think of for the arthropods to constitute the largest group of…

A: Arthropods are the invertebrate animals that have a segmented body, paired jointed appendages, and…

Q: What are the characteristics common to all arthropods? List all of them.

A: Invertebrates are the organism belonging to animal kingdom which do not possess backbone . Such…

Q: Which of these parts is an embryonic midline structure common to all members of the phylum Chordata…

A: Notochord is an embryonic midline structure common to all members of the phylum chordata and plays…

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: what phylum in animal kingdom is now reclassified as a family?

A: Biology, a phylum  is a level of classification or taxonomic rank below kingdom and above classes.…

Q: The “heart” of arthropods is located (ventrally/centrally/dorsally/sagitally)?

A: The “heart” of arthropods is located dorsally.The arthropods are known to possess an open…

Q: What are the reasons that you can think of for the arthropods to constitute the largest group of the…

A: The phylum Arthropoda consists of invertebrate animals such as insects, arachnids, and crustaceans.…

Q: What phylum is considered to be the arthropod's closest relative? What major characteristics do…

A: Arthropods are invertebrates that have legs with joints. They account for around 75% of all animal…

Q: Describe the two invertebrate subphylum of the phylum Chordataand their relationship to the…

A: Classification is a method of grouping organisms into categories or groups based on similarities and…

Q: Crustaceans, like annelids, are segmented animals. But crustaceans unlike annelids have tagmata.…

A: Advantage:  The segmentation of annelids is highly adaptive, it allows more efficient movement.…

Q: Echinodermata is the first phylum you have examined whose members possess true endoskeletons. What…

A: Echinodermata are called after their spiny skin, and so this phylum has over 7,000 recognized living…

Q: The defining feature of the cnidarians is that they all have nematocytes (cnidocytes). These cells;

A: Cnidaria is a phylum of aquatic animals with about 11000 species. Cnidarians can be both marines as…

Q: Protostomes and deuterostomes typically differ in

A: Protostomes are clade of animals containing phyla including the arthropods,annelids and…

Q: The phylum Nematoda is protostome or Deuterostome ?

A: Phylum Nematode commonly referred to as roundworms or thread worms are aquatic or terrestrial,…

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: If nematodes are the most numerous animals, the Arthropoda, including insects, are the most diverse,…

A: Arthropods is the largest phylum of Animalia , they are also called ecdysozoans with paired…

Q: How can the endoskeleton of echinoderms be characterized in comparison to analogous structures…

A:

Q: The presence of a water vascular system is unique to Echinoderms. Describe using labelled diagrams…

A: Answer: Introduction: Echinoderm is the common name given to any member of the phylum Echinodermata…

Q: Explain the relationship between the Vertebrata and these invertebrates.

A: The classification of phylum chordata is divide into three subphylum, i.e., Urochordata (Tunicata),…

Q: Brachiopods superficially resemble bivalve molluscs, such as clams. How would you explain the…

A: brachiopods are marine invertebrates that comprises the lamp shells. They are places in phylum…

Q: How can the presence, localization and function of muscular tissue in beings of the phylum Annelida…

A: Annelids are cylindrical worms with segmented bodies (they are metameric). The main evolutionary…

Q: Describe the evidence that cnidarians share a more recentcommon ancestor with other animals than…

A: Cnidarians, also known as coelenterates are mostly marine organisms and includes corals, hydras, and…

Q: Cnidarians and ctenophores are considered diploblastic, but why might some biologists label them…

A: The process of embryonic development is characterized by the formation of the primary layers called…

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: There are two types of chordates the invertebrates and the vertebrates. How do invertebrate…

A: The scientific classification of animals begin in the late 18th century. At that time , animals for…

Q: What is the relevance of amphioxus in studying anatomy of vertebrates?

A: The closest living invertebrate relative of vertebrates is the cephalochordate amphioxus…

Q: Compared to platyhelminthes which physiological problem have the cylindrical body of nematodes…

A: Platyhelminthes are flat worms that are unsegmented, acoelomates and have bilateral symmetry. They…

Q: Considering the presence of segmentation (metameres) in their body to which other already studied…

A: Arthropod are the invertebrate organisms and have segmented body, exoskeleton, and jointed paired…

Q: What is the role of elaborated cloaca in reptiles?

A: Reptiles are characterized by the presence of four limbs and uric acid as the nitrogenous waste…

Q: What evolutionary adaption has enable Arthropods to be the most diverse group within the animal…

A: Introduction Any member of the phylum Arthropoda, which includes such known forms as lobsters,…

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.