Which type of the nitrogen-fixing bacteria are thought to maintain a low oxygen concentration (microaerobic conditions) through their high levels of respiration

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#Question id: 10737

#10. Ecological Principles

Which of the following statements is true?

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#Question id: 11985

#10. Ecological Principles

In  the  territorial  behavior  of  the  stickleback  fish,  the  red  belly  of  one  male  elicits  attack  from  another  male  by functioning as

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#Question id: 11450

#7. System Physiology – Animal

 The conversion of a stimulus into an action potential by a receptor cell is called ________.

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#Question id: 3899

#3. Fundamental Processes

Which one of the following classes of genes is involved in specifying the localization of organs in the Drosophila embryo?

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#Question id: 3531

#8. Inheritance Biology

Due to independent assortment resulting gamete is