Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 25, Problem 2FIB
Summary Introduction
Introduction:
Phylum chordate is comprised of three clades; the groups which are evolved from the same ancestry: the lancelets, the craniates, and the tunicates. Chordates are two types vertebrate and invertebrate.
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Bilaterally symmetrical animals have________embryonic tissue layers, known as________ ,___________, and________ . Radially symmetricalanimals have_____________ tissue layers; they lack the___________layer.
Match the characteristic to the most general vertebrate group associated with those
characteristics.
lung usually transformed
into swim bladder
secretion of milk
1. Cyclostomata (Agnatha)
no hinged jaw
2. Osteichthyes
fur covering body surface
3. Tetrapoda
lungs and 4 limbs
4. Reptilia (excluding Aves)
gills covered by operculum
5. Aves
hollow bones and feathers
6. Mammalia
7. Amphibia
respiration through lungs
and skin
8. Chondrichthyes
bone-like tissue only
present in teeth and scales
covered in keratinous
scales
4
Select all of the following that are characteristics of crustaceans.
maxillary glands.
monoecious
calcium carbonate deposited in the exoskeleton.
two pairs of antennae.
antennal glands.
a body with three tagmata
external fertilization.
Chapter 25 Solutions
Biology
Ch. 25.1 - describe the features that distinguish chordates...Ch. 25.2 - Prob. 1CSCCh. 25.2 - name and describe the chordates that are not...Ch. 25.2 - name and describe the craniates that are not...Ch. 25.2 - describe the key adaptations of vertebrates?Ch. 25.3 - Most sharks avoid humans, but large sharks of some...Ch. 25.3 - With regard to water regulation (maintaining the...Ch. 25.3 - Prob. 2TCCh. 25.3 - Consider the graph shown in Figure E25-2. Imagine...Ch. 25.3 - Prob. 4TC
Ch. 25.3 - describe the key features of lampreys,...Ch. 25.3 - name and describe the main subgroups included...Ch. 25.3 - Prob. 1CTCh. 25 - The two groups of mammals with the largest number...Ch. 25 - Prob. 2MCCh. 25 - Prob. 3MCCh. 25 - Prob. 4MCCh. 25 - Prob. 5MCCh. 25 - Prob. 1FIBCh. 25 - Prob. 2FIBCh. 25 - Prob. 3FIBCh. 25 - Prob. 4FIBCh. 25 - Prob. 5FIBCh. 25 - Briefly describe each of the following...Ch. 25 - Prob. 2RQCh. 25 - List four distinguishing features of chordates.Ch. 25 - Prob. 4RQCh. 25 - List the adaptations that distinguish reptiles...Ch. 25 - Prob. 6RQCh. 25 - Prob. 7RQCh. 25 - Prob. 1ACCh. 25 - Prob. 2AC
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- Figure 15.3 Which of the following statements is false? a. Eumetazoa have specialized tissues and Parazoa do not. b. Both acoelomates and pseudocoelomates have a body cavity. c. Chordates are more closely related to echinoderms than to rotifers according to the figure. d. Some animals have radial symmetry, and some animals have bilateral symmetry.arrow_forwardWhich of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata c. Urochordata d. Vertebrataarrow_forwardFigure 29.3 Which of the following statements about common features of chordates is true? The dorsal hollow nerve cord is part of the chordate central nervous system. In vertebrate fishes, the pharyngeal slits become the gills. Humans are not chordates because humans do not have a tail. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.arrow_forward
- The basic body plan of a mollusk is to have a head, foot, and visceral mass. In the case of the cephalopods, the foot; Has become part of the digestive system Has been modified into a beak Has been modified into tentacles Has been modified into part of the respiratory systemarrow_forwardMollusks, a diverse group of animals, exhibit a range of unique characteristics. Which of the following are traits of octopuses, a member of the mollusk phylum? Intelligence Ability to change color Presence of a shell Segmented body A large nervous system that extends into their tentaclesarrow_forwardHumans are members of the phylum chordata. As such they have a notochord. The notochord in humans; Can be found next to their spinal chord Has been lost to evolution entirely and is no longer a part of the human life cycle Becomes part of the brain stem Is an embryological feature which is mostly absorbed by the backbonearrow_forward
- ILLUSTRATE THIS/ Mollusks are divided into three classes: Class Cephaloda (squids), Class Gastropoda (snails), Class Bivalvia (clams and oysters) Cephalopods have a few orders, one of which is order octopoda ( octopus) and the other is order teuthida ( squids) the scientific name for the common octopus is octopus vulgaris the scientific name for the common squid is loligo vulgarisarrow_forwardWhich of the following is NOT a part of the medusa form of cnidarian? Answers: Gastrodermis Tentacle Mesoglea Body stalk These are all parts of the medusa form of cnidarians.arrow_forwardWhich of the following is not a characteristic of the phylum Chordata Group of answer choices skull dorsal nerve cord notochord pharyngeal gill slitsarrow_forward
- Which statement below is false given the tree below? Pisces Osteichthyes (bony fishes) Sarcopterygi (lobe-finned fishes) Cyclostomata EAgnatha) Tetrapoda Amniota Reptilia O All reptiles (members of Reptilia) are amniotes (members of Amniota) O All reptiles (members of Reptilia) are tetrapods (members of Tetrapoda) O All amniotes (members of Amniota) are tetrapods (members of Tetrapoda) O All amniotes (members of Amniota) are reptiles (members of Reptilia) Mixini (hagfishes) Petromizontida (lampreys) Chondrichthyes (cartilaginous fishes) Actinopterygii (ray-finned fishes) Actinistia (coelacanths) Dipnoi (lungfishes) Amphibia Mammalia Non-avian reptiles Avesarrow_forwardFill in the blank The difference between the nerve cord and the notochord is that the nerve cord is used _________ and the notochord is used ___________. options for blanks: -as part of the nervous system -for structural support -as part of the digestive systemarrow_forwardWhich of the following structures are homologous in arthropods? 1st leg of horseshoe crab: 1st Maxilla of a king crab Crab antennule: Millepede antennae 1st maxilla of a shrimp: 2nd leg of a spider Millipede mandible: butterfly maxillaarrow_forward
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