Q: A barnacle is a shelled______ . a. arthropod c. cephalopod b. gastropod d. crustacean
A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…
Q: Although they are related, the digestive system of an earthworm and Ascaris are very different. Why…
A: Ascaris is a roundworm that belongs to the phylum Nematoda. It is a thin, unsegmented, parasitic…
Q: a) The cocoon in the earthworm is produced by the b) Most annelids possess tiny bristles called c)…
A: Note: As per Bartleby Guidelines For Remaining Answers Please Repost The Question. Introduction:…
Q: Segmentation in the earthworm is not exemplified bya. body rings.b. coelom divided by septae.c.…
A: Earthworm is a reddish brown terrestrial invertebrate that inhabits the upper layer of the moist…
Q: Unlike other coelomate animal phyla, mollusks lacka. segmentation.b. cephalization.c. three primary…
A: Coelomate animals are those that contain a body cavity enclosing coelom with a complete lining…
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: In the deuterostomes the digestive tract (Gut) forms from the cells of the a) ectoderm b) nerve…
A: Deuterostome are type of division of animals in which blastula of developing embryo becomes anus…
Q: Flatworms (platyhelminthes) possess a O A. metanephridial system B. protonephridial system O C.…
A: Flatworms are unsegmented organisms that are bilaterally symmetrical and are acoelomates. They have…
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: The tapeworms (cercomeromorpha) are not considered to be segmented animals because;
A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…
Q: Trochophore larvae are characteristic of (a) arthropods (b) cnidarians (c) flatworms (d) mollusks…
A: Answer is d.) mollusks.
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: The larval stage of a cnidarian is known as a a. medusa. b. planula. c. polyp. d. cnidocyte.
A: Non-chordates are the life forms that do not have any backbone or notochord in their structure.…
Q: Tapeworms differ from other flatworms in that for movement: O a. They have well-developed muscles…
A: Tapeworm: These are invertebrates of class Cestoda, these are parasitic and are around 5.000…
Q: In the flatworm, flame cells are involved in what metabolic process? a. Reproduction b.…
A: Answer is d.) Osmoregulation.
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: a ECHINODERMATA B b E MOLLUSCA F NEMATODA A CNIDARIA d
A: Metazoa or animals are multicellular eukaryotic organisms that are included in the Animal kingdom.…
Q: Provide two characteristics of the digestive tract for an animal that eats mainly termites
A: Termites are eusocial insects belonging to order Blattodea.
Q: Which of the following is not characteristic of arthropods? (a) exoskeleton (b) pseudocoelom (c)…
A: Answer is b.) pseudocoelom.
Q: Forams (a) are endosymbionts that live in many marine invertebrates (b) were responsible for the…
A: Answer is C) secrete many chambered tests with pores through whivh cytoplasmic extensions project.
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: A ciliated epidermis persists in the mature form of a flatworm belonging to which class? a.…
A: Any member of the invertebrate class Cestoda (phylum Platyhelminthes), a group of parasitic…
Q: Flatworms, annelids, and roundworms are all______ . a. arthropods c. protostomes b. aceolomate d.…
A: Vertebrates are organisms which possess backbone. They also possess notochord. Examples includes:…
Q: Torsion is a unique characteristic of the a. bivalves. b. gastropods. c. chitons. d.…
A: Every group of organisms has some special characteristics that make them unique from others.…
Q: A ciliated feeding structure in the larval stage is a characteristic of aa. trochozoan.b.…
A: The systematic classification of animals is necessary for the purposes of identification and…
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: Compare the reproductive system of an earthworm with that of Ascaris. Be sure to note both…
A: Both ascaris and earthworms are kind of worms. Earthworms are beneficial to the soil,and ascaris is…
Q: The function of the contractile vacuole in many freshwater protozoans is to: a) aid in mechanical…
A: Sponge cells and freshwater protozoans have contractile vacuoles as organelles. The bubble-like…
Q: You find a flatworm during a field trip and discover that the embryos undergo spiral cleavage. What…
A: The daughter cells are positioned in the grooves of the parent cells in a spiral division. The…
Q: Cnideria
A: Answer is option E. Aside from sponges, all animal phyla have a digestive tract, or gut. Cnidaria…
Q: Which of the following worms deposit their eggs in the perianal folds? a)tapeworms b)liver fluke…
A: These are all human parasitic nematodes or trematodes.
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: While studying the embryonic development of an organism, you determine that the blastopore of the…
A: The blastopore is formed during the primary stages of gastrulation. The blastopore forms the mouth…
Q: What type of a body plan doescoelenterates, ctenophores andechinoderms have?A. Annelida…
A: The animals are the most abundant living organism that are found in almost every habitat. They have…
Q: Unlike the turbellarians earthworms have a complete digestive system. This means that;
A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…
Q: Turbellaria are flatworms that have most of their body filled with: O a. Alarge complex reproductive…
A: Turbellaria belongs to phylum Platyhelminthes and they are so named because they create turbulence…
Q: a) How can Strongyloides and hookworms be differentiated in terms of their morphology? b) Why does…
A: I have answered all 3 questions with proper justification. Please follow Step- 2,3,4 for complete…
Q: Annelids have (a): a. pseudocoelom. b. true coelom. c. no coelom. d. none of the above
A: Answer is b.) true coelom.
Q: explain the meaning of the following characteristics of animals a)triploblastic b)bilateral…
A: Zoology is the part of science that concentrates on the animal kingdom, including the design,…
Q: One of the characteristics unique to animals is(A) gastrulation.(B) multicellularity.(C) sexual…
A: Organisms are open systems that maintain homeostasis, are composed of cells, have a life cycle,…
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: If the lateral cilia of pterobranch tentacles are inactivated what would be the likely consequence?…
A: Pterobranchia are marine invertebrates that live in the ocean flower and are small worm-like…
Q: In which of the following aspects are nematodes more complex than flatworms? a. External…
A: Nematodes are also known as round worms. Flatworms belong to phylum platyhelminthes.
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: Describe the characteristics of acoelomate flatworms
A: The study of biology that deals with the structure, function, evolutionary classification and…
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: 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: 6. The Phylum Platyhelminthes includes: A. Roundworms B. Earthworms C. FlatwormsV D. Heartworms
A: Members of Platyhelminthes can be found free or can be parasites.
a. metanephridial system
b. protonephridial system
c. secretion kidney
d. none of these
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- 1. Choanocytes are present ina. Excurrent canalsb. Incurrent canalsc. Radial canalsd. Spongocoel 2. Free living platyhelminthic forms belong to the classa. Trematodab. Turbellariac. Nematodad. Cestode 3. Flame cells are associated with excretory organs ofa. Schistosomab. Dracunculusc. Ancylostomad. AscarisSegmentation in the earthworm is not exemplified bya. body rings.b. coelom divided by septae.c. setae on most segments.d. nephridia interior in most segments.e. tympanum exterior to segments.In arthropods, the tracheal system isa. a unique set of structures that function in ingestion and digestion offood.b. a series of branching tubes extending into the body that allow for gasexchange.c. a series of tubules that allow waste products in the blood to bereleased into the digestive tract.d. the series of ommatidia that form the compound eye.e. none of the above.
- Which of the following characteristics is not seen in the phylum Platyhelminthes?a. cephalizationb. the presence of a mesodermc. specialization of the digestive tractd. bilateral symmetryI. Differentiate the following according to their general characteristics: a. Nematodes b. Cestodes c. TrematodesWhich of the following characteristics are unique to a ctenophore? Do not possess nematocysts; A swim by using comb plates. Possess nematocysts; swim by В using comb plates. Have adhesive cells, or C colloblasts, for capturing food. D Both a and c. Both b and c.
- stion Tapeworms differ from other flatworms in that for movement: O a. They have well-developed muscles for active movement. ered O b. They can attach by hooks and a ring of suckers, but otherwise have little activity. ed out of O c. They permanently glue themselves in a fixed position. O d. They have a pair of suckers that can attach and release. ag question O e. They move slowly by passing waves of muscular contraction along their body. uestion 12 The cork camblum: O a. Is a thick protective layer. ot yet O b. Forms a layer around the xylem. O c. Transports air. d. Is only found in roots. nswered Marked out of 100 Flag question Forms a layer under the epidermis. Oe.The labyrinth of the antennal (or maxillary) gland is used to: take up space and look ugly O provide surface area for the reabsorption of nitrogenous waste produces and carbon dixide capture food particles in mucus decrease the volume of water taken in by the gastric caeca increase intestinal volume for the uptake of polysaccharides and fats increase volume of the gill chamber for gas exchange O provide surface area for reabsorption of electrolytes and amino acidsCnidocytes are found in _____. a. phylum Porifera b. phylum Nemertea c. phylum Nematoda d. phylum Cnidana
- Trochophore larvae are characteristic of (a) arthropods (b) cnidarians (c) flatworms (d) mollusks (e) crustaceansMatch each structure with its descriptions. ____ radula a. internal skeleton ____ exoskeleton b. external skeleton ____ endoskeleton c. stinging cell of cnidarians ____ cnidocyte d. excretory organ of insects ____ compound eye e. mollusk feeding device ____ tube foot f. larva of annelid or mollusk ____ trochophore g. has many lenses ____ Malpighian h. moves an echinoderm tubule i. digests a planarian’s food ____ gastrovascular cavitySiphonicle neck in ammonoidea is directed forwads Select one : True False