Test Review

Diff. Biology

April 21, 2005

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Viruses are classified by ____________. (p. 574) A. viral size and shape

B. type of nucleic acid, including to whether the nucleic acid is single- or double-stranded C. presence or absence of an outer envelope D. all of the above E. none of the above since viruses are not living organisms and therefore cannot be classified

Viruses have a cellular organization. (p. 574) A. True

B. False

Prokaryotic cells lack __________. (p. 577) A. a nucleus

B. ribosomes C. respiratory enzymes D. a plasma membrane E. all of the above

Bacteria that are unable to grow in the presence of oxygen are ________. (p. 577)

A. facultative anaerobes B. obligate anaerobes C. aerobic D. mutualistic E. saprotrophs

Bacteria that are heterotrophic by absorption are ________. (p. 578)

A. facultative anaerobes B. obligate anaerobes C. aerobic D. mutualistic E. saprotrophs

Bacteria have short, fine, hairlike appendages called ______. (p. 577)

A. mesosomes B. plasmids C. flagella D. spirilla E. fimbriae

Bacteria occur in which basic shape(s)? (p. 578)

A. rod B. spherical C. spiral D. all of the above E. spherical, cuboidal and columnar

The terms Archaea and Bacteria mean ___________. (p. 580)

A. aerobic and anaerobic bacteria B. gram-positive and gram-negative bacteria C. ancient and more recent bacteria D. harmless and disease bacteria E. independent and symbiotic bacteria

Binary fission is a form of ______ reproduction. (p. 581)

A. reverse B. meiotic C. gamete D. sexual E. asexual

Bacteria exchange DNA by ____________. (p. 581)

A. conjugation B. transformation C. transduction D. all of the above

Protozoa are classified according to mode of reproduction. (p. 588)

A. True B. False

Amoeboids often have no definite shape and move and engulf prey by a cytoplasmic extension called a ______. (p. 588)

A. food vacuole B. contractile vacuole C. trypanosome D. pseudopod E. trichocyst

Slime molds and water molds have some fungus -like characteristics but differ in important traits. (p. 590)

A. True B. False

Fungi are ___________. (p. 591) A. heterotrophic by absorption

B. multicellular C. eukaryotic D. all of the above

A network of hyphae in fungi is called a ______. (p. 591)

A. slime mold B. plasmodium C. ascus D. sporangium E. mycelium

Yeasts are ______ . (p. 593) A. slime molds

B. sac fungi C. club fungi D. imperfect fungi E. lichens

A lichen is a ______ relationship between a green alga or cyanobacterium and a fungus. (p. 595)

A. saprophytic B. strictly parasitic C. predatory D. symbiotic E. competitive

Imperfect fungi are called "imperfect" because they ___________. (p. 595)

A. have a mixed haplontic-diplontic stage B. cause many diseases C. do not have the features of fungi D. possess many errors or imperfections E. have not been classified since no sexual stage has been identified

Imperfect fungi cause ___________. (p. 595) A. athlete's foot

B. Candida albicans or thrush C. ringworm D. all of the above

Plants have a/an _________ life cycle. (p. 601)

A. asexual-only B. sexual-only C. alternation of generations D. diplontic E. haplontic

The nonvascular plants are the ______. (p. 602)

A. algae and blue-green algae B. fungi and slime and water molds C. hornworts, liverworts and mosses D. gymnosperms E. flowering plants

In the fern, fertilization takes place __________. (pp. 606-607)

A. when spores reach the eggs within the archegonia B. when sperm swim in external water to the antheridia C. when moisture is present D. when conditions are dry enough E. an insect can provide pollination

What two groups of plants produce seeds? (p. 608)

A. gymnosperms and angiosperms B. bryophytes and ferns C. bryophytes and gymnosperms D. angiosperms and ferns E. angiosperms and bryophytes

The gymnosperms produce ______ seeds meaning that they are NOT enclosed by fruits. (p. 608)

A. pollen B. dicot C. fruticose D. pubescent E. uncovered or "naked"

Which of these are gymnosperms? (p. 608) A. cycads

B. ginkgo--the maidenhair tree C. conifers D. all of the above

Pine, cedar, spruce, fir, and redwood trees are ______. (p. 574)

A. cycads B. fern relatives C. conifers D. flowering plants E. bryophytes

Conifers _________. (p. 608) A. include the largest trees in the world

B. include the oldest trees in the world C. provide much of our construction wood and paper D. provide many varied and important chemicals for industry E. all of the above

Seed plants ____________. (p. 583, 608-614)

A. have a haplontic life cycle B. require external water to reproduce C. have a modified alternation of generations of life cycle D. all of the above

Once enclosed within the female cone, the pollen grain _________. (pp. 608-609)

A. develops a pollen tube B. becomes the female gametophyte C. undergoes meiosis D. disintegrates E. develops into the endosperm

Flowering plants include many families but all are grouped into what two angiosperm classes? (p. 612)

A. monocotyledons and dicotyledons B. cycads and conifers C. mosses and ferns D. whisk ferns and horsetails E. sexual and asexual

Double fertilization occurs in angiosperms. (p. 612)

A. True B. False

Which structures are part of the pistil? (p. 614)

A. stigma B. style C. ovary D. all of the above

In the flower the ovules are in the ovary at the base of the pistil. (p. 614)

A. True B. False

Generally, a total of _________ germ layer(s) is seen in most animals, although cnidaria have fewer. (p. 618)

A. one B. two C. three D. four E. five

Asymmetry means that the animal ___________. (p. 619)

A. has no particular symmetry B. is organized circularly C. has definite left and right halves D. can reach out in all directions E. is deformed

Which of the following are classification features in animals? (pp. 618-619)

A. symmetry B. cell, tissue or organ level of organization C. body plan and type of coelom D. segmentation E. all of the above

Which phylum has a true coelom? (p. 621-624)

A. Platyhelminthes B. Cnidaria C. Annelida D. all of the above

Which of the following is NOT an example of a cnidarian? (pp. 622-623)

A. jellyfish B. flatworm C. sea anemone D. coral E. hydra

Which of the following statements regarding parasitic flatworms is FALSE? (p. 625)

A. absorbs nutrients from the digestive tract of the host B. utilize a secondary host to transport the species from primary host to primary host C. cause serious illness in humans D. parasitic flatworms have well-developed sensory and nervous systems E. may have unique larval stages

In animals that lack a skeleton, a fluid-filled interior acts as a ______ skeleton. (p. 626)

A. rigid B. hydrostatic C. temporary D. portable E. pseudo

In protostomes __________. (p. 628) A. the first embryonic opening becomes the

mouth B. the coelom forms by splitting of the mesoderm C. the trochophore larva is common in many D. all of the above

The body of a mollusk contains a __________. (p. 628)

A. visceral mass B. foot C. mantle D. all of the above

Arthropods have an open circulatory system. (p. 635)

A. True B. False

______ compose the largest animal group with more species than species of all other living groups combined. (p. 636)

A. Crustaceans B. Annelids C. Chordates D. Insects E. Fish

The body of the insect has _____ major body segments, _________. (p. 636)

A. two; a head and cephalothorax B. two; a cephalothorax and an abdomen C. three; a head, thorax and abdomen D. three; cephalothorax, thorax and abdomen

E. four; head, cephalus, thorax, and abdomen

Which of the following is TRUE regarding spider anatomy and physiology? (p. 639)

A. Spiders breathe by air flowing past book lungs. B. Spiders do not swallow food but use digestive juices outside to liquify tissues that are then slurped. C. Spiders possess two venom glands in their chelicerae to paralyze prey. D. Malpighian tubules function in the excretion of nitrogenous wastes. E. All of the above are correct

Echinoderms and chordates are considered to both be deuterostomes because _______. (p. 644)

A. their larvae are free-swimming B. the second embryonic opening becomes the mouth C. the coelom forms by outpocketing of the primitive gut D. this is the most primitive form of embryonic development E. deuterostomes all demonstrate a shift from radial to bilateral symmetry

Which of the following are characteristics of chordates? (p. 605)

A. a dorsal supporting rod B. a dorsal hollow nerve cord C. pharyngeal pouches D. a tail extends beyond the anus E. all of the above

Which of the following are invertebrate chordates? (p. 648)

A. tunicates and lancelets B. cartilage fish C. bony fish D. all chordates below mammals E. There are no invertebrate chordates

Vertebrates are distinguished in particular by which feature(s)? (p. 649)

A. no chordate characteristics B. jointed internal skeleton C. lack of cephalization D. open circulatory system E. all of the above are vertebrate features

The advanced development of head and skull features in order to improve sensory ability is termed ___________. (p. 649)

A. encephalopathy B. anterior symmetry C. distal embryology D. cephalization E. allomorphic development

______ fishes are the sharks, the rays and the skates. (p. 650)

A. Agnathous or jawless B. Bony C. Cartilaginous D. Freshwater

Amphibians differ from fish because they usually have ______. (p. 651)

A. a three-chambered heart B. a terrestrial adult stage C. lungs in the adult stage D. eyelids, ears and a voice-producing larynx E. all of the above

Reptiles differ from amphibians because reptiles have ________. (p. 653)

A. warm blood or are endothermic B. a placenta and give live birth C. hard, keratinized, dry skin D. a three-chambered heart E. all of the above

Birds are ______ . (p. 653-655) A. ectothermic

B. endothermic C. variably thermoregulatory D. non-thermic E. hypothermic

______ are egg-laying mammals. (p. 656) A. Marsupials

B. Monotremes C. Insectivores D. Placental mammals E. Bats

Compared with marsupials, which of the following characteristics distinguish placental mammals? (p. 657)

A. mammary glands B. waste and food exchange between embryo and mother C. infant dependency D. all of the above