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    lilmismechanic's Avatar
    lilmismechanic Posts: 1, Reputation: 1
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    #1

    May 3, 2007, 11:38 AM
    Opening doors to biology
    If you're using an up-to-date light microscope to examine animal cells you won't be able to detect
    A. bacterial-sized cell bodies B. the cell nucleus C. ribisomes
    J_9's Avatar
    J_9 Posts: 40,298, Reputation: 5646
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    #2

    May 3, 2007, 11:41 AM
    Please read this announcement, then give us what you think is the right answer and why, then maybe someone will help you.
    Capuchin's Avatar
    Capuchin Posts: 5,255, Reputation: 656
    Uber Member
    		  
    #3

    May 3, 2007, 11:42 AM
    You need to find which of the 3 items you listed is about the same size as the wavelength of visible light.

    I don't want to give you the full answer as you need to research it yourself.

    Look up the size of your 3 options, and the wavelength of visible light and compare them.

    Once you have an answer and a reason you think it is correct, feel free to ask me if I have come to the same conclusion as you. Good luck!
    Organic Nate's Avatar
    Organic Nate Posts: 1, Reputation: 1
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    #4

    May 3, 2007, 06:50 PM
    The replacement electrons for the reaction center of photosystem II come from where?
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