BIOLOGY:LIFE ON EARTH-W/ACCESS
11th Edition
ISBN: 9780134669076
Author: Audesirk
Publisher: PEARSON
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Chapter 25, Problem 1FTB
In chordates, the nerve cord is ________ and runs along the ________ ______ side of the body. During at least one stage of a chordate's life, it has a tail that extends past its _________ and its body is stiffened by a(n) ____________ _________that runs along its length.
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Chapter 25 Solutions
BIOLOGY:LIFE ON EARTH-W/ACCESS
Ch. 25 - The two groups of mammals with the largest number...Ch. 25 - More than half of all vertebrate species are a....Ch. 25 - 3. Which of the following is not a characteristic...Ch. 25 -
4. Adult frogs and toads obtain oxygen...Ch. 25 -
5. Hagfishes
a. are predators of live...Ch. 25 - In chordates, the nerve cord is ________ and runs...Ch. 25 - Animals that are chordates but not vertebrates...Ch. 25 - Prob. 3FTBCh. 25 - Among tetrapod groups, hair is found in; the skin...Ch. 25 - The only mammals that lay eggs are. The only...
Ch. 25 -
1. Briefly describe each of the following...Ch. 25 - Prob. 2RQCh. 25 - List four distinguishing features of chordates.Ch. 25 - Describe the ways in which amphibians are adapted...Ch. 25 - 5. List the adaptations that distinguish reptiles...Ch. 25 - List the adaptations of birds that contribute to...Ch. 25 - 7. How do mammals differ from birds, and what...Ch. 25 - Prob. 1ACCh. 25 - Prob. 2AC
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- All chordates have a _______ as embryos. a. backbone b. jaws c. notochord d. kidneysarrow_forwardWhich of the following is not a characteristic of the phylum Chordata Group of answer choices skull dorsal nerve cord notochord pharyngeal gill slitsarrow_forwardAccording to a cladistically-based classification system, tarsiers are: A. Prosimians, partly because of their nocturnal habits and small body size B. Prosimians, partly because of the presence of a tapetum lucidum and a rhinarium C. Strepsirrhines, partly because of the presence of rhinarium and vomeronasal organ D. Haplorhines, partly because of their partial post-orbital closure and fused frontal bonesarrow_forward
- Which of the following animals show the characteristics required to be a chordate? A. Tunicates such as Mogula sp. B. Lancelets such as Branchiostoma sp. C. Vertebrates such as lithobates/Rana sp. D. A and B only E. A,B, and C onlyarrow_forward"Synapomorphies that unite anurans, caecilians, and salamandars and distinguish them from other organisms include _____." moist skin with mucous glands 1 hole (fenestra) in the temporal region of the skull intercostal muscles and diaphragm used for ventilation secondary loss of appendages in adults all of these are synapomorphies of lissamphibiansarrow_forwardWhich of the 4 characteristics of Phylum Chordata is visible on this organism? Pharyngeal slits Dorsal hollow nerve cord Notochord Post-anal tailarrow_forward
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- Which of the following structures is not a component of the watervascular system of an echinoderm? a. Ossicles b. Ampullae c. Radial canals d. Madreporitesarrow_forwardFeeding and gas exchange in chordates is via pharyngeal gill slits. True False In tunicate larvae, the notochord is used to anchor the animal to the substrate. True False The madreporite located on the oral surface is to take water into the water vascular system. True Falsearrow_forwardWhich 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_forward
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