Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 15, Problem 3ACQ
Figure 15.33 Which of the following statements about common features of chordates is true?
a. The dorsal hollow nerve cord is part of the chordate central nervous system.
b. In vertebrate fishes, the pharyngeal slits become the gills.
c. Humans are not chordates because humans do not have a tail.
d. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.
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Which of the following features does not distinguish humans as a member of phylum Chordata? a. Human embryos undergo indeterminate cleavage. b. A spinal cord runs along an adult human’s dorsal side. c. Human embryos exhibit pharyngeal arches and gill slits. d. The human coccyx forms from an embryonic tail.
Which of the following statements about bilaterian animals is false?
A. Many bilaterians are invertebrates but some are not.
B. All bilaterians are triploblastic (have three germ layers).
C. All bilaterians have bilateral symmetry.
D. Most bilaterians have tissues but some do not.
Which of the following is a derived trait of chordates?
A. Endoskeleton
B. Dorsal nerve cord
C. Skull and vertebrae
D. Muscular post-anal tail
E. None of the above
Chapter 15 Solutions
Concepts of Biology
Ch. 15 - Figure 15.3 Which of the following statements is...Ch. 15 - Figure 15.24 Which of the following statements...Ch. 15 - Figure 15.33 Which of the following statements...Ch. 15 - Which of the following is not a feature common to...Ch. 15 - Which of the following does not occur? a. radially...Ch. 15 - The large central opening in the poriferan body is...Ch. 15 - Cnidocytes are found in _____. a. phylum Porifera...Ch. 15 - Cubozoans are______. a. polyps b. medusoids c....Ch. 15 - Which group of flatworms are primarily external...Ch. 15 - Crustaceans are _____. a. ecdysozoans b. nematodes...
Ch. 15 - A mantle and mantle cavity are present in _____....Ch. 15 - Annelids have a ______. a. pseudocoelom b. a true...Ch. 15 - Echinoderms in their larval state have ______. a....Ch. 15 - The circulatory fluid in echinoderms is _____. a....Ch. 15 - Which of the following is not a member of the...Ch. 15 - Members of Chondrichthyes differ from members of...Ch. 15 - Squamata includes _____. a. crocodiles and...Ch. 15 - Sudoriferous glands produce______. a. sweat b....Ch. 15 - Which of the following is a Monotreme? a. kangaroo...Ch. 15 - How are specialized tissues important for animal...Ch. 15 - Using the following terms, explain what...Ch. 15 - Describe the feeding mechanism of sponges and...Ch. 15 - Compare the structural differences between...Ch. 15 - Speculate as to what advantage(s) a complete...Ch. 15 - Describe a potential advantage and disadvantage of...Ch. 15 - Describe the morphology and anatomy of mollusks.Ch. 15 - Sessile adult tunicates lose the notochord; what...Ch. 15 - During embryonic development, what features do we...Ch. 15 - What can be inferred about the evolution of the...Ch. 15 - Explain why frogs are restricted to a moist...Ch. 15 - Describe three adaptations that allow for flight...
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- All chordates have a _______ as embryos. a. backbone b. jaws c. notochord d. kidneysarrow_forwardA divergence from ________ gave rise to tetrapods. a. ray-finned fishes c. cartilaginous fishes b. lizards d. lobe-finned fishesarrow_forwardWhich of the following is NOT a characteristic of all reptiles? A Use lungs and skin for respiration B Lay eggs on land C Their body is covered with scales made of keratin D Their skin secretes a mucous to keep it moistarrow_forward
- Which of the following statements is correct for all amniotes? A. They have internal fertilization, three embryonic membraes, are independent of water for reprodction B. They have external fertilization if they live in water, have alantoic membranes to carry oxygenated blood to the embryo, and lack a shell on their eggs. C. They lay eggs covered with a shell, are viviporous and have a marsupium D. They have an embryonic chorionic membrane that becomes part of the placenta, has cells with Golgi bodies,and a yolk sac E. They have three embryonic membranes, have notochords, and are ovoviviparous.arrow_forwardEach of the following is a critical difference between protostomes and deuterostomes except A. deuterostomes have bilateral symmetry B. the blastopore becomes the anus in deuterostomes C. the blastopore becomes the mouth in protostomes D. protostomes have radial symmetryarrow_forwardWhich of the following is a defining trait found in chordate embryos? a. limb buds b. a coelom c. a pseudocoelom d. gill slits e. a larval stagearrow_forward
- Which of the following list places the important evolutionary innovations in the correct order of appearance in the chordate phylogeny? a. Vertebrae - bony skeleton - notochord - jaws - internal nares - lobe fins b. Jaws - notochord - bony skeleton - vertebrae - lobe fins - internal nares c. Notochord - jaws - vertebrae - internal nares - lobe fins - bony skeleton d. Notochord - vertebrae - jaws - bony skeleton - lobe fins - internal naresarrow_forwardUnlike bony fishes, amphibians havea. ears. b. jaws. c. a circulatory system.d. a heart.arrow_forwardMatch the benefit to the correct chordate adaptation. (match each number to the correct letter) 1. allows organisms to walk on land 2. allows organisms to lay eggs on land, without water 3. allows organisms to generate their own heat 4. provides a rigid structure for muscles A.bony skeleton B. Ectotherm C. Tetrapod D. Amniotic eggs E. Endotherm F. Seedsarrow_forward
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