Griffith investigated how certain types of bacteria produce pneumonia in mice. The diagram outlines his experiments. The figure shows Griffith’s experiments in which he injected mice with four different samples of bacteria. When injected separately, neither heat-killed, disease-causing bacteria nor live, harmless bacteria killed the mice. The two types injected together, however, caused fatal pneumonia. What happened when the samples of bacteria were injected into the mice? Select all that apply. A. When heat-killed, disease-causing bacteria were injected, the mice were not killed. B. When live, harmless bacteria were injected, the mice did not die. C. When heat-killed, disease-causing bacteria and harmless bacteria were injected together, the mice were killed. D. When heat-killed, disease-causing bacteria were injected, the mice were killed. E. When live, harmful bacteria were injected, the mice died.
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Biology, 22.06.2019 00:30
What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.
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Biology, 22.06.2019 02:00
Which best describes what you will do in the reaching your academic potential course?
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Biology, 22.06.2019 03:50
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Biology, 22.06.2019 10:50
What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis
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Griffith investigated how certain types of bacteria produce pneumonia in mice. The diagram outlines...
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