This class has 1-2 pairs of walking legs O Chelicerata O Crustacea О Нехароda O Myriapoda

Q: Four of the five features listed below are characteristic of cnidarians. Select the exception. a.…

A: Cnidarians is a phylum of Kingdom Animalia. In this phylum, aquatic animals are present which lives…

Q: Which one of these mollusk groups can be classified as suspension feeders? O onphalopods O dvitons O…

A: Introduction  With over 100,000 species, phylum Mollusca is the second-largest animal phylum. Clams,…

Q: Match locomotion types with the appropriate taxa Gastropoda [ Choose ] peristaltic burrowing jet…

A: Locomotion is usually the word that defines the ability or allows us to move from one location to…

Q: Poriferans and placozoans lack muscle cells and nerves. O True O False

A: Kingdom animalia is the Kingdom that contains organisms the following characteristics: They are…

Q: DEUTEROSTOMIA Chordata Chordata V [Choose ] Endostyle Anus forms at or near the site of the…

A: Blastopore :-  It is a pit in the side of the embryo, through which cells destined to be endodermal…

Q: Which of the following are characteristic of the nematode roundworm, Ascaris? (Select all the apply)…

A: Ascaris are worms classified as nematodes.

Q: Which of the following is NOT true of nemerteans? O proboscis stylet (some species) O coelomate…

A: The nemerteans are also called ribbon worms. They are characterized by the presence of proboscis and…

Q: All ctenophores have tentacles O True

A: false

Q: Which of the following is the basic reproductive found on tapeworms? Multiple Choice Hook Scolex…

A: The name tapeworm is due to its elongated tape-like appea­rance. It may attained length of several…

Q: Tardigrada Onychophora Chelicerata Myriapoda Pancrustaceal Refer to the Morphological Phylogeny…

A: Onychophora is a group of soft bodies animals commonly known as velvet worms. Over 200 species of…

Q: Match the following:(a) Operculum           (i) Ctenophora(b) Parapodia            (ii) Mollusca(c)…

A: Animals are divided into main categories known as chordate and non-chordate. Non chordates do not…

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: Function of the mouth in cnidarians includes O A. food ingestion B. solid waste egestion O C. water…

A: Cnidarians are the aquatic invertebrates that exhibit two phases of life: The free-floating stage…

Q: Which of these organisms is NOT in the clade Lophotrochozoa? Cephalopoda Gastropoda Bivalvia…

A: Lophotrochozoa is a clade of protostome animals with an early form of a mouth. It includes the…

Q: hich of the following taxon-character combinations is correct? O Arthropoda, acoleomate Nematoda,…

A: Arthropods are ceolomate Nematodes lack true ceolem Annelida has notochord Tadigradai in many…

Q: Collar cells (choanocytes) are characteristic of (a) poriferans (b) cnidarians (c) most coelomates…

A: Cnidarians :  for example : hydra, jelly fish etc are aquatic animals, they have cnidocytes to…

Q: Closest to Chordata 1. Echinodermata 2. Platyhelminthes 3. Annelida 4. Porifera 5. Chordata 6.…

A: The animals of the phylum Chordata possess a notochord, a dorsal nerve cord, an endostyle,…

Q: Examine figure 37.9 and its caption carefully. Which proglottids, mature or gravid, occur closest to…

A: Step 1 Platyhelminthes is a phylum of dorsoventrally flattened, acoelomate but triploblastic animals…

Q: While sampling marine plankton in a lab, a student finds a large number of fertilized eggs. The…

A: Features given in the question are :  1 .the blastopore becomes the mouth: In protostomes, the…

Q: Characteristics of mollusc are O A. Mantle B. Mantle cavity O C. All of these O D. Coelom E. Radula

A: Cells are the basic unit of life. Living organisms could either be unicellular or multicellular.…

Q: The presence of a bony skeleton, an operculum, and a swim bladder areall defining characteristics…

A: The Myxini have a partial cranium (skull) and skeleton is composed of cartilage. The Lampreys lack…

Q: 12. Para gastric cavity of sponges in lined by Chromocytes Pincocytes Choanocytes Amoebocytes а. b.…

A: Sponges are categorized into several classes depending on their specific characteristics.

Q: 1) Species belonging to the following groups typically have a trochophore larva at the beginning of…

A: Trochophore, also trochosphere, is a thin, translucent, free-swimming larva found in marine annelids…

Q: The chelicerates have 2 pairs of antennae (True/False)?

A: Arthropods dominate the protostome branch of the kingdom Animalia and are eucoelomate protostomes.…

Q: Horseshoe crabs are in the subphylum О Нехароda O Crustacea Cheliceriformes O Myriapoda

A: We have diverse set of animals in this world . They are categoried I to different phylum,  order…

Q: All acoelomate bilateral animals have protonephridia. O True O False

A: acoelomates are bilateral animal that does not exhibit a body cavity. They are very primitive in…

Q: In terrestrial arthropods these features represent adaptations to a terrestrial existence:…

A: Arthropods are a group of creatures with chitinous exoskeletons and jointed appendages. Terrestrial…

Q: Among arthropoda, antennae are characteristic of O Insecta O Myriapoda O Crustacea O All of the…

A:

Q: Brachiopoda 1. А Testudines 2. B Osteichythes 3. С Aves 4. D Myxinoidea 5. E 6. F Rotifera 7. G…

A: The study of links between various groups of species and their evolutionary development is known as…

Q: The earthworms are different than the leaches in that the earthworms move by; Using chetae to anchor…

A: According to the question, we have to explain the reason the earthworms are different than the…

Q: Xenacoelomorpha are characterized by all of the following except: protonephridia hermaphroditism…

A: Xenacoelomorpha is a invertebrate belonging to a small phylum and have two sister groups namely…

Q: Cephalochordata contains pelagic filter feeders. O True O False

A: The marine organisms develop different mechanisms to capture their prey. The diversity in the marine…

Q: Lancelets (Cephalochordates) feed on: O a Sea weeds (algae). O b. Bacteria and dead organic…

A: Lancelets or cephalochordates are a type of filter feeders.

Q: this is mytilus edulis. You may have noticed that many mollusks evolved to form a shell although…

A: Mytilus edulis also known as a blue mussel or common mussel is an edible marine bivalve mollusk.

Q: Annelids have (a): a. pseudocoelom. b. true coelom. c. no coelom. d. none of the above

A: Answer is b.)  true coelom.

Q: ct all the arthropods from this list

A: Phylum Arthropoda: Triploblastic organisms with bilaterally symmetry and segmentation. Body…

Q: A chiton. Note the eight-plate shell characteristicof molluscs in the clade Polyplacophora.

A: The chiton is a mollusk that inhabits the marine environment. They belong to the class…

Q: The arthropod pericardium is a coelom. O True O False

A: Arthropod are invertebrate animals equipped with jointed appendages. In the year 1845 , Von Siebold…

Q: Mouth Second Asymmetrical Animals Symmetrical Animals Spiny Skin Radial Symmetry Bilateral Symmetry…

A: * Assymetrical animal is porifera * Symmetrical animals are eumetazoans *radial symmetry exhibited…

Q: The only members of Phylum Mollusca that have a radula are the gastropods (True/False)?

A: The radula is an anatomical structure used by molluscs for feeding. It is analogous to the tongue.…

Q: Members of the Molluscan class Polyplacophora differ from ALL other classes of Mollusks in that…

A: Molluscs are soft bodied , bilaterally symmetrical,  segmented, celomate animals, usually shelled…

Q: In order to flip themselves upright, horseshoe crabs use their: Chelipids Telson Gnathobases Spatula…

A: As per our honor code, we are allowed to answer only one question at a moment. You have posted more…

Q: Octopi are ---- crustaceans O molluscs O cnidarians Oarthropods

A: The classification is very important in taxonomy. Different organisms are classified according to…

Q: During embryonic development, if the blastopore of the gastrula forms the mouth opening second (anal…

A: C. deuterostome are correct answer. The animal is classified as a deuterostome.

Q: Which of the following Phylum arealso called flatworms?A. Mollusca      B. ChordataC. Ctenophora  D.…

A: The animal kingdom is divided into many phyla. The major species of the animal kingdom include…

Q: The lophophore is Aa common developmental stage of the Lophotrocozoa. Ba synapomorphy of the…

A: 5 kingdom classifications is a type of classification in which living organisms are classified into…

Q: Vhich of the following terms apply to the body cavity of Molluscs (except Cephalopods)? Choose al…

A: It is second largest phylum and consists of diverse group of animals, around 50,000 living species.…

Q: A multilayered cuticle that is periodically molted characterizes A. nematodes B. kinorhynchs O C.…

A: Despite the current use of molecular tools, the evolutionary links between gastrotrichs and other…

Q: Match the animal group with its body plan

A: All the living organisms are classified on the basis of various physical and internal features. The…

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.