Animal Diversity 8th Edition By Hickman - Test Bank

Animal Diversity 8th Edition By Hickman – Test Bank

 

Instant Download – Complete Test Bank With Answers

 

 

Sample Questions Are Posted Below

 

Animal Diversity, 8e (Hickman)

Chapter 5   Unicellular Eukaryotes

 

1) Which is NOT a correct description of a unicellular eukaryote?

1. A) Usually motile
2. B) Development involves an embryonic stage
3. C) Small; best visualized with a microscope
4. D) Usually unicellular; if multicellular, without somatic differentiation
5. E) All of the choices are correct

 

Answer:  B

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

2) The most correct usage of the term “protozoa” is as a(n)

1. A) phylum.
2. B) class.
3. C) separate kingdom.
4. D) synonym for Protista.
5. E) informal cluster of groups with complicated and uncertain phyletic relationships.

 

Answer:  E

Section:  05.03

Topic:  Phylogeny

Learning Objective:  General–Understand concepts related to Unicellular Eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

3) Compared to metazoans, what is the correct perspective on cellular organization of unicellular eukaryotes?

1. A) They are comparatively simpler with fewer structures or organelles than the metazoans.
2. B) They are more limited in their organization and function than a metazoan cell.
3. C) They are equivalent, no more complex nor simpler.
4. D) They are complex and must accomplish within a cell the functions that several specialized cells accomplish in metazoa.
5. E) None of the choices are correct.

 

Answer:  D

Section:  05.03

Topic:  Phylogeny

Learning Objective:  General–Understand concepts related to Unicellular Eukaryotes.

Bloom’s:  2. Understand

Gradable:  automatic

4) Nutrition in unicellular eukaryotes is best described as

1. A) autotrophic.
2. B) heterotrophic.
3. C) saprozoic.
4. D) All of the choices are correct.
5. E) None of the choices are correct.

 

Answer:  D

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

5) Which of the following is/are correct descriptions of unicellular eukaryote characteristics?

1. A) As primitive organisms, they are restricted to asexual reproduction.
2. B) No germ layers are ever formed.
3. C) They are all aquatic.
4. D) When found in other organisms, they are typically parasitic or pathogenic.
5. E) They all lack symmetry.

 

Answer:  B

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.01 Describe the three locomotory mechanisms of unicellular eukaryotes and identify the mechanism that diagnose a clade.

Bloom’s:  1. Remember

Gradable:  automatic

6) Which organelle is believed to have arisen from an independent aerobic prokaryote engulfed by an anaerobic prokaryote?

1. A) Nucleus
2. B) Mitochondrion
3. C) Plastid
4. D) Ribosome
5. E) Endoplasmic reticulum

 

Answer:  B

Section:  05.01

Topic:  Form and Function

Learning Objective:  General–Understand concepts related to Unicellular Eukaryotes.

Bloom’s:  3. Apply

Gradable:  automatic

 

 

 

7) What term is used to refer to the dictyosome of a unicellular eukaryote in other eukaryotes?

1. A) Ribosome
2. B) Mitochondrion
3. C) Endoplasmic reticulum
4. D) Golgi apparatus
5. E) Plastid

 

Answer:  D

Section:  05.01

Topic:  Form and Function

Learning Objective:  General–Understand concepts related to Unicellular Eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

8) Ectoplasm

1. A) provides the vital force of life.
2. B) is cytoplasm that is outside the cell membrane.
3. C) is only found in parasitic amebas.
4. D) is only found in spores of parasites.
5. E) contrasts with endoplasm; both ectoplasm and endoplasm are cytoplasmic components.

 

Answer:  E

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.01 Describe the three locomotory mechanisms of unicellular eukaryotes and identify the mechanism that diagnose a clade.

Bloom’s:  1. Remember

Gradable:  automatic

9) Which unicellular eukaryote is NOT correctly linked to the type of movement structure it possesses?

1. A) Amoeboids-pseudopodia
2. B) Ciliates-cilia
3. C) Dinoflagellates-flagella
4. D) Paramecium-flexibility of the pellicle
5. E) Apicomplexa-reticulopodia

 

Answer:  E

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.01 Describe the three locomotory mechanisms of unicellular eukaryotes and identify the mechanism that diagnose a clade.

Bloom’s:  2. Understand

Gradable:  automatic

 

 

 

10) Which structure is NOT correctly linked to the type of movement or podial function?

1. A) Axoneme-actin-binding protein that keeps ectoplasm from gelling
2. B) Axopodia-thin rods of microtubules
3. C) Lobopodia-flow of both endoplasm and ectoplasm
4. D) Filipodia-thin extensions of only ectoplasm
5. E) Reticulopodia-a thin net-like mesh

 

Answer:  A

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.01 Describe the three locomotory mechanisms of unicellular eukaryotes and identify the mechanism that diagnose a clade.

Bloom’s:  2. Understand

Gradable:  automatic

 

11) What are long, thin pseudopodia supported by axial rods of microtubules called?

1. A) Lobopodia
2. B) Filopodia
3. C) Axopodia
4. D) Reticulopodia
5. E) Actinopodia

 

Answer:  C

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.01 Describe the three locomotory mechanisms of unicellular eukaryotes and identify the mechanism that diagnose a clade.

Bloom’s:  1. Remember

Gradable:  automatic

12) Which of the following represents the arrangement of microtubules in axonemes of cilia?

1. A) Nine peripheral triplets of microtubules
2. B) Nine peripheral pairs of microtubules plus one central pair
3. C) Nine peripheral triplets of microtubules plus one central pair
4. D) Nine peripheral pairs of microtubules plus two central pairs
5. E) Three peripheral pairs of microtubules and no central pairs

 

Answer:  B

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.01 Describe the three locomotory mechanisms of unicellular eukaryotes and identify the mechanism that diagnose a clade.

Bloom’s:  1. Remember

Gradable:  automatic

 

 

 

13) What is found at the base of every flagellum or cilium?

1. A) Kinetosome
2. B) Kinetid
3. C) Axopod
4. D) Kinetoplast
5. E) Lobopod

 

Answer:  A

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.01 Describe the three locomotory mechanisms of unicellular eukaryotes and identify the mechanism that diagnose a clade.

Bloom’s:  1. Remember

Gradable:  automatic

14) Which of the following is NOT a correct description of how the cytoplasm moves in pseudopodia?

1. A) Actin filaments become cross-linked by an actin-binding protein forming a semisolid gel-like state called ectoplasm.
2. B) The nucleus codes for each movement using DNA and protein formation.
3. C) Interaction with lipids in the cell membrane releases actin subunits and allows them to polymerize into actin microfilaments.
4. D) Near the edge of the gel, calcium ions activate an actin-binding protein that releases the actin filaments from the gel.
5. E) Myosin pulling on the edge of the gel causes contraction that forces endoplasm toward the hyaline cap.

 

Answer:  B

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.01 Describe the three locomotory mechanisms of unicellular eukaryotes and identify the mechanism that diagnose a clade.

Bloom’s:  2. Understand

Gradable:  automatic

 

 

 

15) What is the function of the contractile vacuole in protozoa?

1. A) Water balance
2. B) Digestion
3. C) Locomotion
4. D) Excretion of nitrogen wastes
5. E) Respiration

 

Answer:  A

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

16) The most likely mechanism for removing excess water by contractile vacuoles is

1. A) simple osmosis of water across the cell membrane.
2. B) differential fluid pressure.
3. C) reverse osmosis.
4. D) a proton pump that also pulls water into the vacuole.
5. E) an ampulla that forms suction.

 

Answer:  D

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  2. Understand

Gradable:  automatic

 

17) The distinction between phagotrophs (or holozoic feeders) and osmotrophs (or saprozoic feeders) is a difference between

1. A) eating living and eating dead organic material.
2. B) diffusion of food across the membrane versus engulfing food in a vacuole.
3. C) ingesting visible particles or organisms versus ingesting dissolved substances, sometimes from dead organisms.
4. D) producing your own food versus using the chemical bonds in food molecules made by others.
5. E) direct transport versus indirect transport of food molecules.

 

Answer:  C

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  2. Understand

Gradable:  automatic

18) What is the name of the mouth structure found at the end of the oral groove in a Paramecium ciliate?

1. A) Phagosome
2. B) Lysosome
3. C) Cytostome
4. D) Cytoproct
5. E) Paramylon body

 

Answer:  C

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

19) What is the specific structure in ciliates that serves as the site of expulsion for wastes called?

1. A) Phagosome
2. B) Lysosome
3. C) Cytostome
4. D) Cytoproct
5. E) Paramylon body

 

Answer:  D

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

20) Reproduction in unicellular eukaryotes

1. A) is always asexual and usually binary fission.
2. B) is always sexual with the adults being haploid.
3. C) is always sexual with the adults being diploid.
4. D) is always sexual with alternation of haploid and diploid generations.
5. E) may be asexual or any of the above sexual cycles.

 

Answer:  E

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

 

21) When a unicellular eukaryote alternates between haploid and diploid generations, as occurs in most plants, it is called

1. A) zygotic meiosis.
2. B) gametic meiosis.
3. C) intermediary meiosis.
4. D) mitotic meiosis.
5. E) parthenogenesis.

 

Answer:  C

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

22) Usually we expect fission to produce two cells from one, but in some unicellular eukaryotes, multiple fission of the nucleus is followed by rapid division of cytoplasm, releasing many new individuals immediately in a process called

1. A) amitosis.
2. B) budding.
3. C) syngamy.
4. D) autogamy.
5. E) sporogony.

 

Answer:  E

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

 

23) The strange case of organisms that undergo meiosis after fertilization and live out their adult life in the haploid state is a case of

1. A) syngamy.
2. B) zygotic meiosis.
3. C) gametic meiosis.
4. D) autogamy.
5. E) conjugation.

 

Answer:  B

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

24) The strange case of organisms that undergo meiosis to produce gametes that fuse to form a zygote internally without leaving the organism is a process called

1. A) syngamy.
2. B) zygotic meiosis.
3. C) gametic meiosis.
4. D) autogamy.
5. E) conjugation.

 

Answer:  D

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

 

25) Some organisms undergo meiosis to produce gametes that fuse to form a zygote internally without leaving the organism. What is the effect of this process on genetic diversity of the offspring?

1. A) The offspring would be identical clones of the parent.
2. B) The offspring could vary from the parent but there would be less genetic variation because this is inbreeding.
3. C) The offspring would vary from the parent because it would produce different recombinations of each chromosome pair.
4. D) The offspring would become more and more genetically diverse each generation.
5. E) None of the choices are correct.

 

Answer:  C

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  3. Apply

Gradable:  automatic

 

26) What happens during conjugation in most ciliates?

1. A) Haploid micronuclei are exchanged.
2. B) Macronuclei are formed.
3. C) Binary fission occurs.
4. D) The micronuclei disappear.

 

Answer:  A

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

27) Protective cysts are triggered by

1. A) food shortages.
2. B) drying out.
3. C) decreased oxygen.
4. D) merely being the next stage in a regular life cycle.
5. E) All of the choices are correct.

 

Answer:  E

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

28) Cilia or flagella are resorbed and the Golgi apparatus secretes wall material during

1. A) formation of a contractile vacuole.
2. B) intermediary meiosis.
3. C) conjugation.
4. D) pseudopod streaming.
5. E) encystment.

 

Answer:  E

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

29) “Red tides” are caused by massive blooms of

1. A) sporozoans.
2. B) dinoflagellates.
3. C)
4. D) ciliates.
5. E)

 

Answer:  B

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

 

 

30) To what extent are the cells of a colonial Volvox specialized?

1. A) The cells of Volvox are not specialized at all; all are equivalent in function and to be otherwise would make them like those of the metazoa.
2. B) Somatic cells function in nutrition and locomotion while a few “germ” cells carry out reproduction.
3. C) Germ cells specialize in locomotion, others in nutrition, and others in reproduction.
4. D) Volvox is like two organisms living together symbiotically: one set of cells handles nutrition and locomotion and reproduce their type; another type of cell handles sexual reproduction and reproduce their type.
5. E) A Volvox cell alternates between first being somatic, then being reproductive.

 

Answer:  B

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  2. Understand

Gradable:  automatic

 

31) Organisms in the genus Trypanosoma cause

1. A) malaria in both humans and birds.
2. B) amebic dysentery and intestinal ailments.
3. C) African sleeping sickness and Chagas disease.
4. D) birth defects if infecting a woman at the appropriate stage of pregnancy.
5. E) Toxoplasmosis, often contracted from cats.

 

Answer:  C

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

32) Chagas disease in the Americas is carried by

1. A) contaminated water supplies.
2. B) contact with cats and cat feces.
3. C) biting bugs.
4. D) sexual contact.

 

Answer:  C

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

 

33) Giardia lamblia causes

1. A) malaria in both humans and birds; is carried by mosquitoes.
2. B) diarrhea and intestinal ailments; is found in contaminated water.
3. C) African sleeping sickness; is carried by the tsetse fly.
4. D) birth defects; is caused by mosquitos.
5. E) Toxoplasmosis; contracted from cats.

 

Answer:  B

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

 

34) Which is an example of a Ciliophoran?

1. A) Amoeba
2. B) Trypanosoma
3. C) Paramecium
4. D) Plasmodium
5. E) Giardia

 

Answer:  C

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

35) Perhaps half of the U.S. population is infected with this organism that normally resides in tissue cysts containing bradyozoites;  unborn babies are also at risk.

1. A) Amoeba proteus
2. B) Plasmodium vivax
3. C) Toxoplasma gondii
4. D) Trypanosoma cruzi
5. E) Entamoeba histolytica

 

Answer:  C

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

 

36) Mosquitoes that transmit malaria pick up what stage(s) when feeding on the blood of a patient ill with malaria?

1. A) Microgametocytes and macrogametocytes that mature into gametes in the insect host
2. B) Sporozoites from the oocysts
3. C) Merozoites that escape from the red blood cells
4. D) Trophozoites in red blood cells

 

Answer:  A

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

37) How does the mosquito transmit malaria from an ill person to a healthy person?

1. A) Plasmodium is taken up from one person’s blood and squirted back out into the next person.
2. B) Plasmodium gametocytes are taken up from one person’s blood and cross into the saliva duct to be reinjected into the next person.
3. C) Plasmodium gametocytes are taken up from one person’s blood, fuse to form a zygote that becomes a motile ookinete that enters the saliva ducts.
4. D) Plasmodium gametocytes are taken up from one person’s blood, fuse to form a zygote that becomes a motile ookinete, that crosses the stomach wall, forms an oocyst that undergoes sporogony and the sporozoites then migrate to the saliva ducts to be injected into the human host.
5. E) Plasmodium gametocytes are sucked from one person’s blood, form an oocyst that undergoes sporogony and the sporozoites migrate across the stomach lining to the saliva ducts.

 

Answer:  D

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  2. Understand

Gradable:  automatic

 

 

 

38) Most ciliophoran protozoa

1. A) possess flagella.
2. B) possess a cytostome.
3. C) are marine.
4. D) are parasitic.
5. E) have cyst stages for surviving harsh conditions.

 

Answer:  B

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

39) What are the functions of the macronucleus and one or more small micronuclei in Paramecium?

1. A) The macronucleus undergoes meiosis to produce haploid micronuclei that are exchanged in conjugation; this then produces a micronucleus for general cell housekeeping.
2. B) The micronucleus undergoes meiosis to produce haploid micronuclei that are exchanged in conjugation; the macronucleus is responsible for the “day-to-day” functions of the cell.
3. C) Diploid micronuclei control the cell and the haploid macronuclei are exchanged in conjugation for reproduction.
4. D) A micronucleus is always (1n) for conjugative reproduction, the macronucleus functions for general cell coding, and the two are otherwise unrelated.
5. E) None of the choices are correct.

 

Answer:  B

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  2. Understand

Gradable:  automatic

 

 

 

40) Which of the following is NOT a “ciliate?”

1. A) Paramecium
2. B) Stentor
3. C) Vorticella
4. D) Trichodina
5. E) All of the choices are classified as ciliates.

 

Answer:  E

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

41) Osmoregulation in some protozoa is carried out chiefly by a structure called a/an ________ ________.

 

Answer:  contractile vacuole

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

42) After phagocytosis, a food particle is held in a food vacuole also called a/an ________.

 

Answer:  phagosome

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

43) Gametic nuclei arising by meiosis and forming a zygote within the same organism that produced them is a process called ________.

 

Answer:  autogamy

Section:  05.01

Topic:  Form and Function

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

44) The structure in a Euglena that functions to orient it to light is the ________, or eyespot.

 

Answer:  stigma

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

 

45) Foraminiferans are protozoans that form complex, many-chambered tests composed of ________.

 

Answer:  calcium

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

46) Amebic dysentery is caused by the species with the scientific name ________ ________.

 

Answer:  Entameoba histolytica

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

 

47) The protozoan group that contains only endoparasitic forms is the ________.

 

Answer:  Apicomplexa

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

 

 

 

48) A sporozoan parasite of cats that can cause birth defects in humans is called ________ ________.

 

Answer:  Toxoplasma gondii

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.03 Illustrate the impact of unicellular eukaryotes on humans as agents of disease, endoparasites, and key members of the food chain.

Bloom’s:  1. Remember

Gradable:  automatic

 

49) Small spined extrusomes in ciliate protozoa that are discharged apparently to aid in the capture of prey or to serve as a defensive mechanism are called ________.

 

Answer:  trichocysts

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  05.02 Exemplify the diversity of lifestyles and habits used by unicellular eukaryotes.

Bloom’s:  1. Remember

Gradable:  automatic

50) Explain the scientific reasoning behind the reorganization of the “Protozoa.” Why is this important?

 

Answer:  Answers will vary.

Section:  05.03

Topic:  Phylogeny

Learning Objective:  General–Understand concepts related to Unicellular Eukaryotes.

Bloom’s:  6. Create

Gradable:  manual

 

51) Discuss the significance of members of the order Trichomonadida, which possess hydrogenosomes (organelles analogous to mitochondria but which produce molecular hydrogen when oxygen is absent).

 

Answer:  Answers will vary.

Section:  05.03

Topic:  Phylogeny

Learning Objective:  General–Understand concepts related to Unicellular Eukaryotes.

Bloom’s:  2. Understand

Gradable:  manual

 

 

 

52) The Clade Alveolata contains three groups: Apicomplexa, Ciliophora, and Dinoflagellata. What are their shared characteristics and why are they placed in this clade?

 

Answer:  Answers will vary.

Section:  05.02

Topic:  Unicellular Eukaryotic Taxa

Learning Objective:  General–Understand concepts related to Unicellular Eukaryotes.

Bloom’s:  3. Apply

Gradable:  manual