Question

8 Does the figure at the right show homologous or analogous structures 9 At some point during their embryological development, all vertebrates have certain shared structures that appear early in embryonic stages of development. List these three shared structures development and differ in later which of the following statementis) are not true? (Circle the correct answer.) a. Evolution involves changes in gene frequency over time b. Microevolution involves changes in a population over time and occurs slowly c. Evolution involves changes in allele frequency over time. d. Both a and b. 10 se e. Both b and c 16 11 Molecular biologists have studied the amino acid sequences of this protein in order to determine common ancestry Name this protein. 12 Compare and contrast artificial selection and natural selection 13 Humans impose changes in organisms through selective breeding in artificial selection, whereas, in natural selection, natural forces such as competition and climate impose changes. (Circle the correct answer.) True/ False 14 Differentiate between microevolution and macroevolution. 15 Which statements differentiate microevolution and macroevolution? (Circle the correct answer.) a. Microevolution is evolution occurring at the species level within populations. b. Macroevolution is evolution above the level of species. c. Macroevolution occurs over long periods of time. d. Both a and b. e. All of the above. 236 Exploring Biology in the Laboratory . on in 7 Sketch and label the basic external anatom of a tapeworm 8 Discuss the diversity of trematodes Circle the correct answer . are parasitic flukes, and most are b. mostly reside in the lung, liver, bile and pancreatic ducts, intestine, and blood C. Include Taenia sp. and Dugesia sp. d both a and b e. all of the above Label the following figure of the clam 10 12. 13. 16. Animal Planet 29 REVIEW at . Understanding the Lophotrochozoans What are the two defining characteristics found in organisms that are grouped in the clade 4 Members of the class 5 Name the phylum of 7 Describe and provide specific examples of the subphylum Chelicerata 8 What is the basis for the separation of the ecdysozoans from the lophotrochozoans 9 10 10. 30 2 Which of the following are notf wth requires shedding of b. Gills, trachea, and lungs are All have an open c e. Both c and d of t 609 radial symmetry d. Som e. Members all have a body wall containing an endoskeleton of calcareous ossicles with surface spines 7 Which of the following are found in the class Chondrichthyes? (Circle the correct onswer ) c. Placold scales. make up REVIEW the In blastopore gives rise to the anus. 3 Sketch, label, and describe the parts that make up a typical contour bird 10 11 Match the mollusc with the correct class of the phylum Mollusca A. Nautilus, octopus, squid, cuttlefish B. Whelks, limpets, nudibranchs C. Tusk shells D. Clams, scallops, oysters Polyplacophora Scaphopoda F. Slugs, snails, abalone which of the following are found in gastropods only, bivalves, only or both groups of molluscs, unsing the following key G Gastropods B -Bivalves G/B-Both gastropods and bivalves One-plece univalive Two-piece shell (bivalve) Apex; as the animal grows, the successive whorls increase in size Muscular foot for locomotion Hump, or umbo, on the anterior end of the dorsal side of each shell valve Head, characterized by presence of two tentacles, each with an eye and radula for rasping Presence of adductor muscles hold shell together No head and radula 13 why are cephalopods considered advanced 14 This molluse structure is a protnusible, tonguelike organ with "teeth" used for rasping of alge or dritling through shells. (Circle the correct answer.) b. Umbo. C. Labial d. Radula. 13 List the ma 14 This group is parasitic as adults, attaching to fish with their sucker-tike mouth and sharp horny teeth, eventually with their sucker-like causing the death of the host by sucking out body fluids (Circle the correct answer a. Hagfish. b. Lamprey C. Acorm worm. d. Amphiuma. e. Both a and c

Answer 1

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