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anonymous

  • one year ago

Which occurs as part of gas exchange? oxygen is exhaled carbon dioxide is inhaled carbon dioxide diffuses from the trachea to blood in capillaries oxygen diffuses from alveolar sacs to blood in capillaries

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  1. only_hanaaa
    • one year ago
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    it is the last one, "oxygen diffuses from alveolar sacs to blood in capillaries". because the 1st and 2nd ones don't really make sense, and the 3rd one isn't true, cause if it was we wouldn't need any lungs, so your best answer is the 4th one

  2. anonymous
    • one year ago
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    okay thanks

  3. anonymous
    • one year ago
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    oxygen diffuses from alveolar sacs to blood in capillaries

  4. anonymous
    • one year ago
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    can you help me with a few more

  5. only_hanaaa
    • one year ago
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    sure

  6. anonymous
    • one year ago
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    yes

  7. anonymous
    • one year ago
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    During a trip to the Galapagos Islands, which observation led Charles Darwin to suspect that organisms change over time? Island finches were able to breed with mainland species. Island finches resembled mainland finches, but were not the same species. Island finches resembled extinct species from other islands around the world. Island finches did not have beaks of the same size and shape.

  8. Melodious
    • one year ago
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    the last option

  9. only_hanaaa
    • one year ago
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    the last one cause in Darwin's journal he talks about and show the different types of finches and there different types of beaks

  10. Melodious
    • one year ago
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    its there in class 7 science book too.

  11. anonymous
    • one year ago
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    Which is an effect of a compromised immune system? decreased antibody production improved ability to fight disease increased lymphocyte production reduction in pathogens entering the body

  12. Melodious
    • one year ago
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    compromised?

  13. Melodious
    • one year ago
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    i didnt get it properly.......

  14. anonymous
    • one year ago
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    This passage is a narrative written in verse that tells the story of a larger-than-life hero in a grand, elevated style. Based on this information, which genre does The Aenid belong to? drama epic poetry prose historical fiction

  15. anonymous
    • one year ago
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    The answer is B Epic poetry.

  16. only_hanaaa
    • one year ago
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    the first one, a decreased in anti-bodies is a sign of a comprised immune-system @RosePetal_

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