Which of the following obtain energy by oxidizing inorganic substances; energy that is used, in part, to fix CO2?

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#Question id: 11968

#Unit 7. System Physiology – Animal

 Upon activation by stomach acidity, the secretions of the parietal cells ________.

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#Question id: 10376

#Unit 6. System Physiology – Plant

Symbiotic nitrogen-fixing rhizobia release nodulation (Nod) factors as signaling agents as they near the surface of a legume root. The interaction between specific nod factors and their corresponding receptors. Which of the following statements is incorrect?

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#Question id: 15595

#Unit 8. Inheritance Biology

How might the function of extracellular endonucleases help protect the bacterium from infection by viruses?

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#Question id: 1053

#Unit 4. Cell Communication and Cell Signaling

Phages that can either replicate and cause cell lysis or can integrate their DNA into the host DNA are called

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#Question id: 3698

#Unit 3. Fundamental Processes

In this diagram of the process of DNA replication at a replication fork, the strand labeled B is the: