Pretend you see an animal at the ocean under a rock. It's 4 cm long. At first you think it might be a centipede but it's soft-skinned and the leg like things are not jointed, they are also very soft. What is it most likely to be? A. polychaete annelid B. hemichordate C. sea cucumber D. hexapod 11

Q: examine the morphology of a millipede and a butterfly.  What characters do they share? Notice how…

A: As per the evolution of organisms, the organisms are divided into various phyla. These are a group…

Q: A)gills  B) jaws C)pharyngeal slits D)vertebrae E)lavar stage

A: A phylogenetic tree often called a phylogeny is a diagrammatic representation that shows how various…

Q: Reptiles are much more extensively adapted to life on land than amphibians because reptiles a. have…

A: Answer is b.)  lay eggs that are enclosed in shells.

Q: Which of the following is most closely related to lobsters and what characteristics are significant…

A: Lobsters are a group of crustaceans which are commercially important because they are consumed as…

Q: Echinoderms have _____ symmetry as embryos and _____ symmetry as adults. a. radial; radial c.…

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: fishing net brings up a soft bodied animal with a coiled external shell. How can you determine…

A: Cephalopods are only found in the ocean, whereas gastropods are mostly found on land, with a few…

Q: You go plankton fishing and catch a trocophore larva. You take it home and it develops into some…

A: Animals are multicellular organisms , eukaryotic organism that are without cell wall . Animal…

Q: Stalked jellyfishes" belong to which class?    A. Staurozoa B. Scyphozoa C. Anthozoa D.Hydrozoa E.…

A: Stalked Jellyfishes are the sole living members of Class Staurozoa.

Q: Which group of flatworms are primarily ectoparasites of fish? a. monogeneans b. trematodes c.…

A: The flatworms come under Phylum Platyhelminthes and comprise a very diverse group of worms.  The…

Q: Suppose you find an animal that has a lateral line and a skeleton made out of cartilage. What class…

A: Every animal phylum poses some unique characteristics that are used for the identification of that…

Q: Prepare a list of some animals that are found parasitic on human beings.

A: The term parasitic refers to an organism that lives on a host, from the body of which it obtains…

Q: The sister taxon of the Chordata is the _____. a. Mollusca b. Arthropoda c. Ambulacraria d. Rotifera

A: All living organisms are classified based on their internal and external features. The science of…

Q: Nematodes once were thought to be closely related torotifers due to the presence of a pseudocoelom…

A: Nematodes:         Nematodes can be otherwise known as roundworms, which comes under the hood of…

Q: Echinoderms have _____. a. triangular symmetry b. radial symmetry c. hexagonal symmetry d.…

A: A major group of marine animals are echinoderms. They are known for their spine like skin. These…

Q: What characteristic is common to the flatworms, molluscs, and annelids? a. All have bilateral…

A: Organisms with a single plane of symmetry are called bilaterally symmetrical. Organisms which lack a…

Q: Chordates are named for having this generalized structure. A. Spinal cord B. Stomochord C. Notochord…

A: The chordates is an advanced group in the animal kingdom. The chordates include cyclostome,…

Q: write a short conclusion about  Platyhelminthes Nematoda and Annelida

A: Platyhelminthes/ Flatworms:- They are soft bodied, flat invertebrates, most of which are parasitic…

Q: A mantle and mantle cavity are present in _____. a. class Oligochaeta b. class Bivalvia c. class…

A: The animal kingdom is separated into several phyla due to the different anatomical and physiological…

Q: What is a key characteristic of all arthropods? a. Six legs c. Hydrostatic skeleton b. Pseudocoelom…

A: Arthropoda are invertebrate animals equipped with joint appendages. It is the largest phylum of…

Q: Which features are true of sea cucumbers? A. use the water vascular system to move on the seafloor…

A: Please follow step 2 for detailed explanation.

Q: All of these animals catch plankton with feathery things except A. Phoronid B. Ribbon worm C. …

A: A diverse group of organisms present in water that is carried by tides and currents is referred to…

Q: During a survey you spot a soft bodied animal enclosed in a two-piece shell. How can you determine…

A: Humans rely heavily on the marine environment and its inhabitants. We rely on the environment that…

Q: Which group of echinoderms usually posses pentameric antimeres but some species may have more? A.…

A: Echinodermate's term was coined by J. Klein. These are exclusively marine organisms falling in the…

Q: Longitudinal muscles of roundworms have tissues similar to? Explain. a) cardiac muscle b) skeletal…

A: Roundworms belong to the phylum Nematoda. They have longitudinal muscles that run the length of the…

Q: Earthworms are most closely related to________ . a. tapeworms c. planarians b. roundworms d. leeches

A:

Q: a) What is the unique characteristic of the prawn? b) State the organ that helps prawn swim. c) What…

A: Prawns belong to phylum arthropoda. Arthropoda is the largest phylum of animal kingdom. The unique…

Q: Which is not true about Cnidarians? A1. Some cnidarians go through polyp stages and medusa stages A.…

A: Cnidarians are invertebrates such as jellyfish and corals, belongs to the phylum Cnidaria. All…

Q: a rabbit is a tetrapod. It has hair, a large brain, and acute vision and sense of smell. It nurses…

A: Any animal belonging to the subphylum Vertebrata, which is the most usual subphylum of the phylum…

Q: The closest living relatives of hagfishes are_____ . a. snakes c. lampreys b. sharks d. placoderms

A: The organisms that has a common ancestor can share a relativity of closeness among it. These…

Q: Compare the different adaptations of aquatic and terrestrial arthropods. How about the parasitic…

A: terrestrial arthropods are adapted to live in terrestrial environments. Some of these adaptations…

Q: Cubozoans are ________. a. polyps b. medusoids c. polymorphs d. sponges

A: BASIC INFORMATION  PHYLUM CNIDARIA It is one of the phylum in the animal kingdom which constitutes…

Q: Pretend you find a clam-like thing with two shells, about 1 inch across. You open it and see a large…

A: Answer  B. Brachiopod

Q: A member of the protostome group of animals   a. has no symmetry.   b. has an anus derived from…

A: Protostome: are the group of animals, which include the arthropods, and other mollusks and worms and…

Q: Clams are a type of...

A: Molluscs, or mollusks, are the largest marine phylum. Molluscs are filter-feeding invertebrates that…

Q: probably Choose a or b a. provide fish with jaws in order to be fearful predators. b. store calcium…

A: Bones are the structures present in the body of vertebrates. Bones provide structure to the body and…

Q: Give reasons why annelids are restricted to moist environments

A: The phylum Annelida consists of worms like the ring worms, earthworms and segmented worms. They have…

Q: You find a worm and discover that it has no coelom, no nephridia and a mouth but no anus. What must…

A: Xenacoelomorphs are invertebrate organisms that also lack true body cavities and are thus…

Q: 'Acromanutalas are equally closely related to what pair/groups of species provided in the answer…

A: A phylogenetic tree is a diagram that depicts the lines of evolutionary descent of different…

Q: Members of Chondrichthyes are thought to be descended from fishes that had ________. a. a…

A: Sharks, rays, and skate, as well as sawfishes and a few handful fish species known as chimaeras, or…

Q: A What is mean ond contrust to cephelopods

A: Circulatory system is also known as cardiovascular system or vascular system.It is an organ system…

Q: Which phylum is characterized by animals thathave a segmented body?(A) Cnidaria(B)…

A: Segmented body is the division of body plans in some animals in which the body is divided into the…

Q: Walkng in the beach you see an animal with a hard shell and many jointed appendages. Determine…

A: Arthropods  These are invertebrate animals that possess  exoskeleton with segmented body, and paired…

Q: A bird or feathered dinosaur is ________. a. Neornithes b. Archaeopteryx c. Enantiornithes d.…

A: Dinosaurs that have feathers on their body are known as feathered dinosaurs. This species of…

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.