retroviruses.
3. viruses containing rna as their genetic information are called (1 point)
retroviruses.
prophages.
bacteriophages.
capsids.
4. in the six-kingdom classification system, bacteria are divided into two kingdoms, eubacteria and archaebacteria. the main difference in the cell structures of the two groups of bacteria is that (1 point)
eubacteria do not have peptidoglycan in their cell walls, but archaebacteria do.
archaebacteria do not have peptidoglycan in their cell walls, but eubacteria do.
eubacteria have chlorophyll in their cells, but archaebacteria do not.
archaebacteria have chlorophyll in their cells, but eubacteria do not.
5. how do bacteria contribute to an ecosystem? (1 point)
some bacteria reduce the number of parasites infesting organisms in an ecosystem.
some bacteria provide nutrients and raw materials for organisms in an ecosystem.
some bacteria are a primary food source for most of the consumers in an ecosystem.
some bacteria provide protection from viral infections for the organisms in an ecosystem.
6. which of the following roles of bacteria is not a benefit to human bodies? (1 point)
digesting food
preventing diabetes
making vitamins
acting as a pathogen
7. two ways bacteria cause disease is by using the cells of the organism they infect as food and by (1 point)
making antibiotics.
releasing toxins.
releasing viruses.
releasing disinfectants.
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What condition is kept close to its set point in osmoregulation? a. body temperature b. platelet count c. blood glucose level d. water balance
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3. viruses containing rna as their genetic information are called (1 point)
retroviruses.
retroviruses.
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