1. Some members of the Domain Bacteria 7. Gram stain is used to distinguish betw
ID: 186940 • Letter: 1
Question
1. Some members of the Domain Bacteria 7. Gram stain is used to distinguish between have (a) a nucleus (b) membrane-bound organelles (c) chloroplasts (d) photosynthetic ability different (a) bacteria (b) protistans (c) dinoflagellates (d) all of the above 2. A pathogen is 8. Those organisms that are covered by (a) a disease (b) an organism that causes a disease (c) a substance that kills bacteria (d) the same as a heterocyst numerous, tiny locomotory structures belong to the phylum (a) Euglenozoa (b) Stramenopila (c) Amoebozoa (d) Ciliata 3. Which of the following is true? (a) All bacteria are autotrophic (b) All protists are heterotrophic (c) Oscillatoria is photoautotrophic (d) Trypanosoma is photoautotrophic 9. A vector is (a) an organism that causes disease (b) a disease (c) a substance that prevents disease (d) an organism that transmits a disease 4. Which organisms are characterized as decomposers? (a) bacteria (b) protozoans (c) amoebas (d) sporozoans causing organism 10. The organism that causes malaria is (a) a pathogen (b) Plasmodium vivax (c) carried by a mosquito (d) all of the above 5. Organisms capable of nitrogen fixation (a) include some bacteria (b) include some cyanobacteria (c) may live as symbionts with other 11. Which of these organisms (or parts of the organisms) might you find as an ingredient in toothpaste? (a) euglenoids (b) diatoms (c) dinoflagellates (d) stoneworts organisms (d) all of the above 6. A spherical bacterium is called a (a) bacillus coccuuS (c) spirillum (d) none of the aboveExplanation / Answer
1) Some members of domain bacteria have photosynthetic ability that is option D.
A is wrong because bacteria don't have nucleus.
B is wrong because membrane bound organelles are eukaryotic characteristic.
C is wrong because bacteria don't have chloroplasts.
2) Option B is the correct answer that is pathogen is an example that causes a disease.
3) option C is the correct answer that is oscillatoria is photoautotrophic.
Option D is wrong because trypanosoma is heterotrophic.
A and B are wrong because bacteria can be autotrophic and heterotrophic.
4) option A is the correct answer that is bacteria is characterized as Decomposers.
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