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    which of the following statements is correct with respect to the evolutionary relationship between chordates and invertebrates?

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    Answer to Which of the following statements is correct with respect to the evolutionary relationship between chordates and invertebrates? A. chordates are most

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    Which of the following statements is correct with respect to the evolutionary

    relationship between chordates and invertebrates?

    A. chordates are most closely related to arthropods

    B. chordates are more closely related to echinoderms than to arthropods

    C. chordates are most closely related to the tunicate-type of echinoderms

    D. chordates evolved from echinoderms

    Please explain why the correct answer is B, and why A is incorrect

    Science Biology

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    Which of the following statements is correct with respect to the evolutionary relationship between chordates and invertebrates? A. chordates are most closely related to arthropods. B. chordates are more closely related to echinoderms than to arthropods. C

    Answer to: Which of the following statements is correct with respect to the evolutionary relationship between chordates and invertebrates? A....

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    Which of the following statements is correct with respect to the evolutionary relationship...

    Which of the following statements is correct with respect to the evolutionary relationship... Question:

    Which of the following statements is correct with respect to the evolutionary relationship between chordates and invertebrates?

    A. chordates are most closely related to arthropods.

    B. chordates are more closely related to echinoderms than to arthropods.

    C. chordates are most closely related to the tunicate-type of echinoderms.

    D. chordates evolved from echinoderms.

    Vertebrate Characteristics

    Animals of the phylum Chordata share a number of characteristics with invertebrate phyla, such as species in Echinodermata, Arthropoda, and Mollusca. For example, these animals all have a complete digestive tract, form from three germ layers, and demonstrate bilateral symmetry (Echinoderms are bilaterally symmetrical in the larval stage). There are evolutionary relationships that exist between the distinct phyla of animals.

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    Chordates are more closely related to echinoderms than to arthropods (answer choice B). Chordates and echinoderms are both deuterostomes, meaning that...

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    Evolution of Chordates

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    Chapter 33 / Lesson 1

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    Chordates are a type of animal subcategory or phylum that includes all vertebrates, including humans, and many non-vertebrates as well. Learn the features and evolution of chordates to include craniates, vertebrates, jaws, lungs, limbs, and tetrapods, and amniotes.

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    Exam 3 Flashcards

    Start studying Exam 3. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

    Exam 3

    1. An arthropod has all the following characteristics except

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    A pseudocoelom

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    2. Humans are members of the phylum chrodata. Which of the following phyla represent the closest invertebrate relatives of the chordates?

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    Echinoderms

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    1/73 Created by spauldingg14

    Textbook solutions for this set

    Anatomy and Physiology

    1st Edition OpenStax 599 explanations

    Essentials of Human Anatomy and Physiology

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    Elaine N. Marieb, Suzanne M. Keller

    642 explanations

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    Terms in this set (73)

    1. An arthropod has all the following characteristics except

    A pseudocoelom

    2. Humans are members of the phylum chrodata. Which of the following phyla represent the closest invertebrate relatives of the chordates?

    Echinoderms

    3. Molecular tudies have changed many of the phylogenetic relationships previously identified by morphological studies. These changes indicate that

    Molecular studies add additional information to morphological studies and improve our understanding of evolutionary history

    4. Earthworms consume, for energy, dead organic matter, therefore they

    Are detritivores

    5. Large animals need specialized organs for gas exchange because

    Volume increases more rapidly than surface area as size increases

    6. Nematodes and arthropods both

    Develop an anus from the blastopore formed in the gastrula stage

    7. You find a multi-legged animal in your garden and want to determine if it is a centipede or a millipede. You take the animal to a university where a myriapodologist quickly tells you that you have found a centipede. Which of the following traits may have allowed her to make this distinction?

    Poisonous claws

    8. There are over a half dozen phyla within the lophotrochozoa syperphylum. The one best described as having sued rings for body, setae and parapodia is the

    Annelida

    9. On the right you see organisms (same species) that is a member of the phylum arthropoda and the subphylum

    Nemerata

    10. The heartworms that can accumulate within the hearts of dogs and other mammals have a pseudocoelom, an alimentary canal, and an outer covering that is occasionally shed. To which phylum does the heartworm belong?

    Nematode

    11. Often acquired from eating raw or undercooked meat, this parasitic nematode causes symptoms of diarrhea, abdominal cramps, muscle pain, and fever.

    Trichinosis

    12. Soft-shell crab is a prized dish in many ocean-side resorts. Why are the crabs' shells soft?

    The crab has just molted and the new exoskeleton has not yet hardened

    13. Which of the following statements is correct with respect to the evolutionary relationship between chordates and invertebrates?

    Chordates are more closely related to echinoderms than to arthropods

    14. Which phylum is characterized by animals that have a segmented body?

    Arthropoda

    15. Two out of every threeknown species of animals are arthropods

    True

    16. Each of these groups contribute significant (15% or greater) biodiversity to the arthropods except:

    Lepidoptera

    17. The diversity of arthropod body plans was likely driven by changes in the sequence regulation of existing (at that point of development, Hos genes

    True

    18. The invert (aquatic insect) functional feeding group that finds food by filtering particles from the water or from the surrounding area

    Collector

    19. Modified functions of appendages in some living arthropods include fusion into a single wing, molting of the exoskeleton, and lining of the open circulation system

    False

    20. In arthropods, you would expect to find a polymer of the molecule shown to the right plus protein in the

    Heart

    21. Gas exchange in spiders occurs in book lungs, where air flows between the ____ of the spiracle opening

    Aveoli

    22. The organisms shown to the right is most likely

    A planktonic crustacean

    23. About 100 million years ago, the rapid insect diversification was linked to

    The species radiation of flowering plant

    24. Largest order of the class insect, phylum arthropoda

    Coleopteran

    25. Complete metamorphosis includes all stages except

    Nymph

    26. You most likely would find this structure in an echinoderm

    Tube feet

    27. An animal lacking a backbone, such as an arthropod, mollusk, annelid, coelenterate, etc.

    Invertebrate

    28. Which is not a characteristic in the arthropod plan (hint: this does NOT refer to head, thorax, abdomen)

    Piercing mouth parts

    29. If a tunicate's pharyngeal gill slits were suddenly blocked, the animal would have troubled

    Respiring and feeding

    30. Which extant chordates are postulated to be most like the earliest chordates in appearance?

    Lancelets

    31. Vertebrates and tunicates share

    A notochord and a dorsal hollow nerve

    32. Which of the following is a characteristic of all chordates at some point during their life cycle?

    Post-anal tail

    33. Which of the following characteristics is shared by a hagfish and a lamprey?

    A well-developed notochord

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