MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.13) Individuals of which protist group can grow hundreds of feet long, and almost half a foot per
September 17, 2022
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.13) Individuals of which protist group can grow hundreds of feet long, and almost half a foot perday?1) Which of the following statements about the Domain Bacteria is TRUE?A) Bacteria are able to increase their genetic variability by reproducing sexually.B) Bacteria are multicellular microbes.C) Chloroplasts are found in photosynthetic bacteria.D) Bacteria lack membrane-bound organelles.E) Bacterial endospores are fragile structures that are easily destroyed.2) In bacteria, the small, circular pieces of DNA that are located outside the chromosome are calledA) flagella.B) bacteriophages.C) sex pili.D) plasmids.E) endospores.3) The mutations that improve the survival and reproduction of organisms, and thus contribute tothe evolution of species, arise rapidly in prokaryotes due to theirA) rapid rates of cell division.B) anaerobic metabolism.C) sexual reproduction.D) cell wall composition.E) absence of a nucleus.4) The use of bacteria to break down pollutants is referred to asA) nitrogen-fixation.B) binary fission.C) biofixation.D) bioremediation.E) biosynthesis.5) Disease-causing bacteria are calledA) Archaea.B) cyanobacteria.C) pathogens.D) protozoa.E) viroids.6) Which Protist causes a sexually transmitted disease?A) TrichomonasB) TrypanosomaC) GiardiaD) PlasmodiumE) Pfiesteria7) Which of the following is FALSE?A) Viruses are smaller than bacteria.B) Viruses are not living organisms.C) Antibiotics cannot prevent or treat viral diseases.D) The genetic material of viruses is not contained in a nucleus.E) Viruses are classified in the domain Archaea.8) A virus basically consists ofA) RNA or DNA and a membrane.B) enzymes and a protein coat.C) RNA or DNA and enzymes.D) RNA or DNA and a protein coat.E) proteins and a cell membrane.9) ViroidsA) attack bacteria.B) are infectious pieces of DNA enclosed in a protein coat.C) are infectious chains of amino acids.D) are infectious pieces of RNA.E) have a plasma membrane.10) Are viruses alive or are they just biologically active chemicals? Explain your reasoning.TRUE/FALSE. Write T if the statement is true and F if the statement is false.11) The Kingdom Protista is a group that can best be defined as any eukaryote that is not a plant, animal, or fungus. True or False?MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.12) Phytoplankton are very important to the aquatic ecosystems because theyA) produce glucose.B) produce oxygen.C) absorb carbon dioxide.D) All of the above are true.E) None of the above are true.13) Individuals of which protist group can grow hundreds of feet long, and almost half a foot perday?A) brown algaeB) cyanobacteriaC) slime moldsD) phytoplanktonE) water molds14) Which of the following is considered to be most closely related to the plants?A) green algaeB) slime moldsC) diatomsD) brown algaeE) euglenidsSHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.15) What would life on Earth be like today, had eukaryotic protists not evolved?MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.16) Fungal hyphae usually areA) diploid.B) haploid.c. triploidd. n n17) The haploid, single-celled product of mitosis isA) sporophyteB) gametophyteC) zygoteD) sporeE) gamete18) Claviceps purpurea is an organism from phylum ________. It infects rye plants and producestoxins (including LSD) that can produce convulsions, hallucinations, and death if consumed bya person.A) AscomycotaB) ChytriiomycotaC) DeuteromycotaD) ZygomycotaE) Basidiomycota19) If a strong fungicide is released and eliminates all the fungi in an ecosystem, which of thefollowing is likely to happen?
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