The producers in aquatic ecosystems include organisms in which of the following groups?

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#Question id: 20846

#Unit 12. Applied Biology

Nitrate is energetically the best electron acceptor under anoxic conditions and is generally used preferentially by which type of microbes?

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#Question id: 3870

#Unit 3. Fundamental Processes

“Footprinting” or DNase protection is a technique used to identify:

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#Question id: 3904

#Unit 3. Fundamental Processes

Which statement about RNA polymerase is false?

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#Question id: 31037

#Unit 4. Cell Communication and Cell Signaling

In some receptors (e.g., the insulin receptor), unphosphorylated activation loop prevents:

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#Question id: 10509

#Unit 6. System Physiology – Plant

A different type of mechanical obstacle to herbivory is provided by mineral crystals that are present in many plant species, such as silica crystals known as