Which of the following does NOT ALWAYS describe ecdysozoans?    a. They exhibit bilateral symmetry. b. All of the other choices (except "None among....") c. They are protostomes. d. None among the other choices e. They are pseudocoelomates. f. They are triploblastic. g. They exhibit cephalization.

Q: Which is/are charactersitic of scyphozoans? O A. oral arms B. medusa stage only O C. scyphistoma D.…

A: INTRODUCTION Scyphozoans They are true jelly fish comes under phylum cnideria.

Q: A defining feature of the Ecdysozoa is aa. segmented body.b. closed circulatory system.c. cuticle.d.…

A: The Ecdysozoa is a group of protostome animals that belong to the arthropod, Nematoda, and several…

Q: Articulate brachiopods are so-called because: a. they can communicate with one another b. they are…

A: Brachiopods are group of animal belonging to lophotrocozoan animals. They are marine and possess…

Q: A- The animals above are members of EE Rp A. Echinodermata B. Hemichordata C. Pterobranchia D. A & B…

A: Answer: The animals above are members of - E) B&C. The animals are belong to phylum-…

Q: Which of the following applies to a squid? a. Cephalization c. Complete digestive tract b. True…

A: The differentiation of the anterior end into the head is known as cephalization. It is associated…

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: Flatworms can reach a maximum size of around 40cm. Whilst this is big for a worm, there are…

A: Introduction Flatworms or Platyhelminthes are acoelomate, bilaterally symmetrical, soft bodies…

Q: Cnidocytes (a) are characteristic of sponges (b) are found among cells lining the gastrovascular…

A: The group of eukaryotic and multicellular organisms that are heterotrophic and belong to the kingdom…

Q: Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata…

A: Chordate can be defined as the animal that will belong to the phylum Chordata. There is some period…

Q: To which of the following groups would a species that does not molt, possesses a coelom, and has a…

A: The process of molting refers to the method where one immature organism sheds hair, feathers,…

Q: Which of the following classes of arthropod possess chelicerae? a. Chilopoda b. Crustacea c.…

A: Answer is d.) Chelicerata.

Q: If chaetognaths belong to Lophotrochozoa, they would be more closely related to animals like…

A: Chaetognaths are phylum of the predatory marine worms.

Q: Phylum Chordata: (Made up of 3 subphyla, two of which lack a true backbone) 1. State the four…

A: Chordata is a vast class of animals that contains vertebrates as well as sea squirts and lancelets.…

Q: Which of the ff. has a repugnatorial gland and coils into a ball when disturbed? A. Diplopod B.…

A: Various species under the arthropoda phylum are classified under Myriapoda. These possess multiple…

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: 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: Ctenophora Animals Porifera Placozoa Cnidaria Bilateria |Chanoflagellata What is true about the red…

A: The correct answer is-  d) it includes the most recent ancestor and all of its descendants

Q: Which of the following is not characteristic of arthropods? (a) exoskeleton (b) pseudocoelom (c)…

A: Answer is b.) pseudocoelom.

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: Imagine you come across a gelatinous animal with a Medusa body plan swimming. Determine whether it…

A: Cnidaria is a Phylum of the Animal Kingdom. It has 4 classes namely:  Hydrozoa  - eg Capitata…

Q: A coelomate organism may have which of the following characteristics? a. Circulatory system b.…

A: A coelomate organism may have which of the following characteristics?

Q: Distinguish between (a) radial and bilateral symmetry; (b) blastula andgastrula; (c) direct and…

A: (a) radial and bilateral symmetry -  Bilateral symmetry is where the left and the right sides of the…

Q: Make a concept map about Subphylum Myriapoda and its classes (Chilopoda, Diplopoda, Pauropoda,…

A: Insects, spiders, crustaceans, and their relatives make up this huge phylum of invertebrate…

Q: completely wraps the cavity is called: a) coelom b) pseudocoelom c) acoelom d) Archenteron e)…

A: 5th answer is b

Q: You read a research article presentsing new phylogenetic data demonstrating that species that…

A: Answer- Correct option is (A) Evolution of the pseudocoelom occurred more than once.

Q: Class Gastropoda and Class Bivalvia independently evolved modifications to their body plan that…

A: Both class belong to the phylum mollusca of kingdom animalia.

Q: Which group of crustaceans has all of these attributes: - sessile, strongly attached to substrates…

A: Introduction Any member of the Crustacea subphylum (phylum Arthropoda), a collection of invertebrate…

Q: Choose which is FALSE among the following statements about the Phylum Annelida. A. Annelids have…

A: A. False.  B. True C. True D. False E.True.

Q: Segmentation, first seen in annelids, allows evolutionary advantages bya. allowing more fluid…

A: The segmented body is the most noticeable of the annelid phylum's identifying characteristics. The…

Q: Both cartilaginous and bony fishes have_ a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The name vertebrate comes from the Latin word vertebrae, which refers to the spine's bones. Animals…

Q: In arthropods, the tracheal system isa. a unique set of structures that function in ingestion and…

A: Arthropoda belongs to the Kingdom Animalia and is known for having segmented bodies with appendages.…

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: The jacobson's organ is to organisms in _____________________ as the lateral line is to organisms in…

A: Jacobson's organ is an Olfactory organ which is present in squamates (scaled reptiles like snake,…

Q: Select 2 types of mesozoans and describe the following: class characteristics developments

A: Mesozoa is worm-like parasites that live on marine invertebrates. In the majority of these tiny,…

Q: Pharyngeal gills of enteropneust hemichordates and chordates are A. involved in filter feeding B.…

A: Hemichordates belong to an unique phylum of marine invertebrates that mostly filter feed by their…

Q: Both cartilaginous and bony fishes have______ . a. jaws d. a swim bladder b. a bony skeleton e. a…

A: The term vertebrate is derived from the word vertebrae, which refers to the bones that make up the…

Q: Imagine you come across a flatworm. Determine whether it is a Cestode or Turbellarian? Give two…

A: The Phylum Platyhelminthes is divided into four classes namely: - Turbellaria - e.g. Planaria-…

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: Match the benefit to the correct chordate adaptation. (match each number to the correct letter)…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Which of the following groups of early-diverging animals is comprised of two layers of cells that…

A: External epidermis and internal gastrodermis have 2 major cell layers.

Q: Which of the following statements is NOT true regarding protostome diversity?   A. Of the 30…

A: Blastopore is the opening of the archenteron on the surface of an embryo in the gastrula stage of…

Q: There is current controversy about which group is sister to the rest of the animals. Which two of…

A: The animals are those organisms who are made up of animal cells. They don't have cell wall around…

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: In Figure 33.2, which two main clades branch from the mostrecent common ancestor of the…

A: A clade is a monophyletic group that consists of a common ancestor and all its species that have…

Q: Which clade does not include humans?(A) synapsids(B) lobe-fins(C) diapsids(D) osteichthyans

A: Clades are the group of organisms that are classified on their shared traits with their common…

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.