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Home Q & A Board Biology-Related Homework Help General Biology
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kajumbi kajumbi
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7 years ago
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
Textbook 
Biology: The Core

Biology: The Core


Edition: 2nd
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cortman22cortman22
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kajumbi Author
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7 years ago
THANK YOU
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