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AleksAgata [21]
3 years ago
9

Which element has exactly 29 electrons and is in period 4

Biology
1 answer:
natima [27]3 years ago
8 0
I believe it is copper.
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The diagram shows a step of protein synthesis, which is called ____ and takes place within a ____.
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Answer:

The pathway of oxygen from lungs to the body tissues is alveoli → red blood cells → blood vessels → tissues (option b).

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  3. O₂ in the red blood cells travels through the blood vessels.
  4. The tissues receive the O₂ and a second gaseous exchange occurs at the tissue level, as they release CO₂ that will be carried to the alveoli.

Tissue oxygenation depends on the integrity of the respiratory and circulatory systems.

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DIFFUSION ACROSS A MEMBRANR

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