ard calcium carbonate structures are sed as skeleton by: Echinodermata Arthropoda

Q: E. sponges

A: 1. option d massive asteroid impact would create long-term changes in the atmosphere and climate of…

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: Which is not true of both platyhelminths and xenacoelomorphs O possess nephridia O are triploblastic…

A: Invertebrates are creatures that lack a vertebral column (also known as a backbone or spine) due to…

Q: If a snail had a damaged radula, then that snail; would have no shell Not be able to undergo torsion…

A: Snails are one of the earliest known types of animals in the world. There is evidence that they…

Q: The anteriormost nonsegmental body region of an annelid is the prostomium acron O pygidium O…

A: Phylum annelida exhibits great diversity of body form, body is elongated bilateral symmetrical and…

Q: Cuttlefish pen (invertebrate endoskeleton) is composed of (a) chitin (b) collagen (c) calcium…

A: The phylum mollusca (invertebrates) shows the presence of shell. The shell may be internal or…

Q: Choanocytes are present in

A: Answer - Option D - Spongocoel In simple sponges, the choanocytes are present in the lining of the…

Q: Vhich of the following DA All Mollusks have radulae. B Some mollusks, but not all, have a variation…

A: Phylum can be defined as the level of classification or belongs to a taxonomic group below the…

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: Most molluscs have an external shell of some have an internal shell such as and and others don't…

A: Molluscs is a phylum that belongs to Non Chordates. They comprise the second largest phyla.Mollusc…

Q: Which characteristic(s) account(s) for the success ofarthropods?a. jointed exoskeletonb.…

A: Answer is e.)  all of these are correct.

Q: Explain the major advantages and disadvantages of mollusk exoskeletons in comparison to worm…

A: Hi dear, here's your answer. The three skeleton types incorporate the hydrostatic skeleton, mollusk…

Q: v [ Choose ] Tunicata Trematoda Cestoda siphons, tadpole larva (some species) Cephalochordata…

A: Answer. Cestoda and Trematoda are classes that belong to the phylum Platyhelminthes. Examples…

Q: Sponges are Radially symmetrical Bilaterally symmetrical Asymmetrical Dorso- ventrally…

A: The animals can be classified into three distinct classes depending on their body symmetry:…

Q: What feature unifies all the classes of annelids Select one: Oa Parapodia Ob. Choanocytes Oc.…

A: The phylum Annelida consists of mainly segmented worms. They have a true coelom, are bilaterally…

Q: Which is/are true of the mollusc radula is a synapomorphy of Mollusca is situated in the foregut a…

A: The phylum mollusca is the second largest phylum of animals after arthropoda. It includes more than…

Q: Which characteristic(s) account(s) for the success of arthropods?a. jointed appendagesb. an…

A: R.H. Whitaker’s classification system divided the organisms into five major categories. Kingdom…

Q: Explain why an earthworm loses its cylindrical shapewhen it dies.

A: Zoology is the branch of biology that deals with the study of animals. The animals are classified…

Q: Members of Phylum Chordata (Chordates) All of the above All have gills as adults Display gill slits…

A: Chordates are animals which are more complex than others.  They are found in large numbers .

Q: The ____and_____ are grouped as Ecdysozoabecause they both molt.a. cnidarians/arthropods c.…

A: As they mature, all members of Ecdysozoa superphylum molt or lose their cuticle. They secrete a…

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: Description of the Cnidarian species.

A: Cnidaria is a phylum, which comes under the kingdom Animalia, and it contains more than 10,000…

Q: Animals in __________ and __________ typically have structural features made of calcium. Group of…

A: Molluscs are the aquatic organisms which are soft from inside and have a hard shell like…

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: Match each structure with its descriptions. ____ radula                     a. internal skeleton…

A: Human anatomy and physiology are concerned with how the human body works to keep itself alive and…

Q: Briefly explain the mechanism of action of a sea star’s tube foot.

A: Tube feet, also called podia are the small tubular projections on the oral surface of an echinoderm,…

Q: _______function(s) in the movement of cnidarians. a. A hydrostatic skeleton c. Cnidocytes b. Tube…

A: Phylum cnidarian is coelenterates that lack the body coelom (acoelomate). They are marine animals…

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

A: An arthropod is an invertebrate animal which has an exoskeleton, a segmented body and paired…

Q: ct all the arthropods from this list

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

Q: What is the possible reason why some cnidarians had evolved to a stony skeleton? plz include…

A: Cnidarians belong to Kingdom Animalia. They are also called coelenterates belonging to phylum…

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: Echinoderm skeleton consists of: An internal skeleton of calcium carbonate. O a. O b. An internal…

A: Endoskeleton- The hard part which is the internal support of the structure is called an…

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: What are the three major body parts of the phylum Mollusca? Select one or more: □a Foot Ob. Radula…

A: Introduction Mollusca:- It is the second-largest phylum of invertebrate animals after the…

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: Which of the following is/are true of Nemertea partitioned coelom. eversible proboscis Orhynchocoel…

A: It is critical to learn and know the anatomy and physiology of the body. Many changes in the animal…

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: Select all true statements regarding this organism. diploblastic deuterostome Invertebrate O…

A: The above picture is of a echinoderm. They belong to the kingdom animalia. Deuterostome…

Q: Zoology arthropoda. Name the structure and it’s function.

A: Arthropoda is the largest phylum of the invertebrates, they contains insects molluscs etc.  Body of…

Q: Name the animal shown in this picture. O Nematoda O Mollusca OAnnelida O Cnidaria OPlatyhelminthes

A:

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…

Evolutionary adaptations

Evolutionary adaptation is the process through which organisms adapt or adjust to their surroundings to increase the chances of survival, mating, and reproduction. An organism's behavior, physiology, and structure are adjusted or changed to make it more suited to its environment.