Bio Ch 25-26 Test

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Bio Ch 25-26 Test
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2013-05-19 22:41:13
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Bio 25 26 Test
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Bio Ch 25-26 Test
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  1. Organisms that must obtain nutrients and energy by eating other organisms are
    a. multicellular. c. heterotrophic.
    b. autotrophic. d. eukaryotic.
    c
  2. A student looks at a slice of tissue on an unlabeled microscope slide. The student concludes the tissue is not from an animal because the cells in the tissue have
    a. membrane-bound organelles. c. cell membranes.
    b. nuclei. d. cell walls.
     d
  3. In chordates in which pharyngeal pouches develop slits that lead outside of the body, the adult most likely uses what type of organ(s) to breathe?
    a. gills c. skin
    b. lungs d. nose
    3. a
  4. Nerves branch in intervals from which of the following structures in a chordate embryo?
    a. tail c. notochord
    b. pharyngeal pouches d. hollow nerve cord
    4. d
  5. The notochord is responsible for which function in an embryo?
    a. processing wastes c. respiration
    b. structural support d. processing nerve signals
    5. b
  6. Which chordate characteristic is visible on the outside of an adult cat?
    a. notochord c. pharyngeal pouches
    b. hollow nerve cord d. a tail that extends beyond the anus
    6. d
  7. All animals eat to obtain
    a. oxygen. c. carbon dioxide.
    b. ammonia. d. nutrients.
    7. d
  8. Muscles work together with a support structure called a
    a. segment. c. blastopore.
    b. skeleton. d. coelom.
    8. b
  9. Animals have an excretory system that eliminates all wastes except
    a. oxygen. c. ammonia.
    b. carbon dioxide. d. nutrients.
    9. b
  10. To maintain homeostasis, land animals that hunt and feed in salt water
    a. drink salt water.
    b. have adaptations that let them get rid of excess salt.
    c. choose to eat animals that are not very salty.
    d. drink less water to limit salt intake.
    10. b
  11. Look at the illustration in Figure 25–1. Which of the following internal characteristics would you expect this animal to have?
    a. a pseudocoelom c. an acoelom
    b. paired organs d. a notochord
    11. b
  12. A coelom is a body cavity
    a. completely lined with mesoderm.
    b. partially lined with mesoderm.
    c. without mesoderm.
    d. partially lined with endoderm.
    12. a
  13. Which of the following variations would you expect to see in land vertebrates?
    a. varying numbers of limbs
    b. different types of symmetry
    c. varying shapes of forelimbs
    d. varying numbers of germ layers
    13. c
  14. Which of the following is a node that you would expect to find on the cladogram for animals?
    a. fur texture c. feather arrangement
    b. deuterostome development d. leg length
    14. b
  15. Which of the following statements about the cladogram of animals is true?
    a. Backbones evolved before segmentation.
    b. Radial symmetry appears only once in the cladogram.
    c. Segmentation evolved more than once in different branches of the cladogram.
    d. All deuterostomes have bilateral symmetry and cephalization.
    15. c
  16. A cell that contains a nucleus and membrane-bound organelles is
    a. multicellular. c. prokaryotic.
    b. heterotrophic. d. eukaryotic.
  17. 1. d
  18. . Organisms that must obtain nutrients and energy by eating other organisms are
    • a. multicellular. c. heterotrophic.
    • b. autotrophic. d. eukaryotic.
  19. . A student looks at a slice of tissue on an unlabeled microscope slide. The student concludes the tissue is not from an animal because the cells in the tissue have
    • a. membrane-bound organelles. c. cell membranes.
    • b. nuclei. d. cell walls.
  20. . In fishes, pharyngeal pouches may develop into
    • a. fins. c. tails.
    • b. lungs. d. gills.
  21. . Look at the illustration in Figure 25–1 above. Which letter represents the hollow nerve cord?
    • a. A c. C
    • b. B d. D
  22. . Fewer than 5 percent of all animal species have
    • a. eukaryotic cells.
    • b. a protostome development pattern.
    • c. vertebral columns.
    • d. cell membranes.
  23. . Homeostasis is a
    • a. step in embryological development.
    • b. stable internal environment.
    • c. response to a stimulus.
    • d. phylum of invertebrates.
  24. . Animals have nervous systems that
    • a. collect metabolic wastes. c. produce offspring.
    • b. gather information. d. acquire oxygen and nutrients.
  25. . When an animal’s environment changes, sexual reproduction improves a species’ ability to
    • a. react to new stimuli.
    • b. increase its numbers rapidly.
    • c. adapt to new living conditions.
    • d. produce genetically identical offspring.
  26. . Ammonia is a waste product that must be eliminated by the
    • a. digestive system. c. nervous system.
    • b. respiratory system. d. excretory system.
  27. . The presence of legs or other limbs indicates that the animal is
    • a. an acoelomate. c. a protostome.
    • b. radially symmetrical. d. segmented.
  28. An animal that has body parts that extend outward from its center shows
    a. radial symmetry.
    b. segmentation.
    c. several planes of symmetry.
    d. bilateral symmetry.
  29. A blastula is
    a. a digestive organ.
    b. the innermost germ layer.
    c. a layer of embryological tissue.
    d. a hollow ball of cells in an embryo.
  30. Which of the following is a fertilized egg?
    a. a blastula c. a blastopore
    b. a zygote d. a pseudocoelom
  31. Which of the following statements about the cladogram of animals is true?
    a. Backbones evolved before segmentation.
    b. Radial symmetry appears only once in the cladogram.
    c. Segmentation evolved more than once in different branches of the cladogram.
    d. All deuterostomes have bilateral symmetry and cephalization.
  32. The Cambrian Explosion resulted in the evolution of the first
    a. dinosaurs and mammals.
    b. representatives of most animal phyla.
    c. bacteria.
    d. land animals.
  33. Some of the fossils that have been found from before the Cambrian Explosion are embryos. This suggests that the organisms these fossils belong to
    a. have bilateral symmetry. c. exhibit cephalization.
    b. reproduce asexually. d. reproduce sexually.
  34. The simplest animals to have body symmetry are
    a. sponges. c. cnidarians.
    b. algae. d. echinoderms.
  35. A marine biologist exploring a deep sea trench locates a new species of soft-bodied creature with an unfamiliar shape. He is able to determine that the creature is a mollusk because it has
    a. bilateral symmetry. c. an internal shell.
    b. body segmentation. d. an internal skeleton.
  36. A flexible, supporting structure found only in chordates is the
    a. nerve net. c. pharyngeal slits.
    b. notochord. d. dorsal fin.
  37. Skeletons of early vertebrates were composed of cartilage instead of bone. Which characteristic does cartilage share with notochords?
    a. It is hard and rigid. c. It contracts.
    b. It is soft and flexible. d. Oxygen can diffuse through it.
  38. Which of the following pairs of modern chordate groups are most closely related?
    a. hagfishes and lungfishes c. birds and crocodilians
    b. lampreys and ray-finned fishes d. sharks and the coelacanth
  39. Jaws and limbs are characteristic of
    a. worms. c. vertebrates only.
    b. all chordates. d. reptiles only.
  40. Suppose a paleontologist discovered a fossil skull that he believes might be distantly related to primates. Unlike true primates, the face is not quite flat and the eyes do not face completely forward. The paleontologist would most likely conclude that the animal lacked
    a. the ability to form extended family groups.
    b. the ability to grip branches precisely.
    c. the ability to manipulate tools.
    d. the ability to judge the location of tree branches.
  41. A tail that is adapted for grasping and holding objects is
    a. binocular. c. radial.
    b. bipedal. d. prehensile.
  42. The group that includes gibbons and humans but does not include tarsiers is the
    a. primates. c. hominoids.
    b. anthropoids. d. hominines.
  43. A primatologist finds a new species of primate in a Madagascar forest. The primate has a long snout and is active at night. The primatologist would likely classify this primate as a
    a. lemur. c. hominoid.
    b. anthropoid. d. bush baby.
  44. Researchers have concluded that the Dikika Baby was most likely a better climber than modern humans. This evidence may suggest that Dikika Baby’s relatives may have spent part of their time
    a. using tools. c. hunting in groups.
    b. in trees. d. waging war on other troops.
  45. Researchers concluded from the leg bones of the fossil shown in Figure 26–1 that Lucy was bipedal. Which of the following would also indicate that this hominine was bipedal?
    a. broad rib cages c. opposable thumbs
    b. skulls with flat faces d. bowl-shaped pelvises
  46. The earliest hominine that belonged to the same genus as modern humans was probably
    a. Homo habilis. c. Australopithecus afarensis.
    b. Homo neanderthalensis. d. Homo ergaster.
  47. A marine biologist exploring a deep sea trench locates a new species of soft-bodied creature with an unfamiliar shape. He is able to determine that the creature is a mollusk because it has
    a. bilateral symmetry. c. an internal shell.
    b. body segmentation. d. an internal skeleton.
  48. A flexible, supporting structure found only in chordates is the
    a. nerve net. c. pharyngeal slits.
    b. notochord. d. dorsal fin.
  49. Ancient chordates are thought to be most closely related to which of the following species?
    a. spiders c. octopi
    b. earthworms d. sea anemones
  50. Skeletons of early vertebrates were composed of cartilage instead of bone. Which characteristic does cartilage share with notochords?
    a. It is hard and rigid. c. It contracts.
    b. It is soft and flexible. d. Oxygen can diffuse through it.
  51. Amphibians evolved from
    a. ray-finned fishes. c. jawless fishes.
    b. cartilaginous fishes d. lobe-finned fishes.
  52. Jaws and limbs are characteristic of
    a. worms. c. vertebrates only.
    b. all chordates. d. reptiles only.
  53. What does fossil evidence indicate about the order in which these three vertebrates evolved: a bony fish with a jaw, a jawless fish, and a fish with leglike fins?
    a. The bony fish evolved before the jawless fish.
    b. The fish with leglike fins was the last to evolve.
    c. The jawless fish was the last to evolve.
    d. The fish with leglike fins evolved before the jawless fish.
  54. A primate’s ability to hold objects in its hands or feet is an evolutionary development that was necessary for it to
    a. walk upright. c. gather food.
    b. use simple tools. d. create elaborate social systems.
  55. A tail that is adapted for grasping and holding objects is
    a. binocular. c. radial.
    b. bipedal. d. prehensile.
  56. The group that includes gibbons and humans but does not include tarsiers is the
    a. primates. c. hominoids.
    b. anthropoids. d. hominines
  57. Old World monkeys can be distinguished from New World monkeys by observing
    a. what the monkeys eat.
    b. how the monkeys interact with their troop.
    c. how the monkeys use their tails.
    d. when the monkeys are most active.
  58. Having a thumb that can move against the other fingers makes it possible for a primate to
    a. hold objects firmly. c. display elaborate social behaviors.
    b. merge visual images. d. judge the locations of tree branches.
  59. Fossil evidence indicates that Australopithecus afarensis
    a. was primarily a meat-eater. c. was bipedal.
    b. had a large brain. d. appeared later than Homo ergaster.
  60. Which statement is true of Homo sapiens?
    a. They evolved after the Cro-Magnons.
    b. They have been Earth’s only hominine for the last 24,000 years.
    c. They became extinct about 1 million years ago.
    d. They replaced Homo habilis in Europe and the Middle East.
  61. Which of the following was a characteristic of the Neanderthals?
    a. making sophisticated stone blades
    b. producing cave paintings
    c. producing tools from bones and antlers
    d. burying their dead with simple rituals

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