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Title: Intense UV light from the sun is lethal to living things. Currently, some 99% of all incoming UV is ... Post by: kajumbi on Oct 11, 2016 Intense UV light from the sun is lethal to living things. Currently, some 99% of all incoming UV is blocked by the ozone layer which didn't develop until well after the first life-forms. How might the very earliest organisms have avoided the intense UV rays?
A) Stayed below ground B) Had scales C) Stayed underwater D) Only came out at night Title: Re: Intense UV light from the sun is lethal to living things. Currently, some 99% of all incoming UV ... Post by: cortman22 on Oct 11, 2016 Content hidden
Title: Re: Intense UV light from the sun is lethal to living things. Currently, some 99% of all incoming UV is ... Post by: kajumbi on Oct 13, 2016 THANK YOU
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