5. Which chordates are thought to be the most recent mammalian group to have evolved, with live birth, and a placenta to provide oxygen to the developing embryo (over a relatively long gestational period)? A. the prototherians (including the spiny echidna) B. the metatherians (including the kangaroo) C. the monotremes (including the platypus) D. the marsupials (including the opossum) E. the euthdrians (including the beaver)

5. Which chordates are thought to be the most recent mammalian group to have evolved, with live birth, and a placenta to provide oxygen to the developing embryo (over a relatively long gestational period)? A. the prototherians (including the spiny echidna) B. the metatherians (including the kangaroo) C. the monotremes (including the platypus) D. the marsupials (including the opossum) E. the euthdrians (including the beaver)

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter24: Animals Ii: The Chordates

Section: Chapter Questions

Problem 6SA: Reptiles, including birds, belong to one major lineage of amniotes, and________ belong to another....

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31. Which mammalian group is considered to be the most ancient to have evolved, using the older reptilian reproductive strategy of laying eggs (ovipary) rather than live birth (vivipary)? A. the prototherians (including the duck-billed platypus) B. the eutherians (including the beaver) C. the metatherians (including the kangaroo) D. the placentals (including the mouse) E. the marsupials (including the opossum)
15. To what order do primitive mammals that lay eggs belong? A. Marsupials B. Craniata C. Monotremata D. Placental mammals 16. Large colonies of polyps belonging to class Anthrozoa secrete hard skeletons of time which later form A. sea aneores B. obellas C. corals D. jellyfish 17. When body parts are paired on either side of the body; this type of symmetry is called A. Dorso-ventral B. bilateral C. Radial D. dorsal
31. One of the reasons that primates have been so evolutionaritly successful for the past 55 million years has been due to their ability to adapt to different biological niches. This is in part due to their _____ dentition. A. bilophodont B. Endothermic C. heterodontic D. homodontic
1. Which of the following justifies the expansion of the allantois in shelled amniotes? * a. It stores excretory wastes of the embryo. b. It can be accommodated by the coelom. c. It forms allantoic vessels for gas exchange. d. It protects the embryo from mechanical stress.2. Which frog blastula region contains the materials for the presumptive notochord? * a. deep zone b. animal cap c. vegetal base d. involuting marginal zone 3. The process of activation during fertilization is triggered by which activity? * a. the binding of the sperm to ZP3. b. the binding of the sperm to ZP2. c. the binding of the sperm to PIP2. d. the opening of calcium channels.
45. Which of the following chordate groups is believed to have been the most ancient to evolve (during the Cambrian Period, from 542 to 488 million years ago)? A. Class Amphibia (e.g., frogs, toads, salamanders, and caecilians) B. Class Reptilia (e.g., lizards, snakes, turtles, and crocodiles) C. Class Mammalia (e.g., mice, rats, dogs, wolves, and humans) D. Class Aves (e.g., eagles, penguins, pelicans, and sparrows) E. Class Agnatha (e.g., conodonts, hagfish, and the sea lamprey)
1. The first terrestrial vertebrates to evolve, with lungs, tetrapod limbs, and a three-chambered heart (during the Devonian Period, from 416 million years ago to 359 million years ago), were members of: A. Class Chondrichthyes B. Class Mammalia C. Class Amphibia D. Class Agnatha E. Class Aves
30. Class Aves evolved from Jurassic dinosaurs belonging to which of the following chordate groups? A. Class Chondrichthyes B. Class Reptilia C. Class Osteichthyes D. Class Agnatha E. Class Mammalia
1. What era is known as the age of reptiles? 2. In animals, Hox genes activate proteins to determine A. animal cephalic region B. animal physiology C. animal body plan D. animal caudal region E. animal reproduction
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.
The amniotes include all but the a. birds. c. mammals. b. reptiles. d. amphibians.
1. Identify traits that characterize all animals. 2. State one way that animal cells differ from the cells of plants and fungi. What is the significance of this difference? 3. State how the phylum Chordata differs from other animal phyla. 4. List three traits that evolved in invertebrate animals. 5. Describe the range of variation in the nervous systems of invertebrates. 6. Distinguish among asymmetry, radial symmetry, and bilateral symmetry.
7. Primates have prehensile hands (and sometimes they have prehensile feet). What does this mean? OA. They have five digits on each hand and foot. B. They have nails rather than claws. C. Their hands are adapted for seizing or grasping. OD. They have an opposable thumb, which allows for a precise grip. O 17:48:40 q W SIS y U