I believe <u>B.) Analogous structures show that living in similar habitats doesn't lead to similar adaptations </u>is your right answer.
The answer would be the ozone layer. <span>A layer of ozone in the upper atmosphere absorbs </span>UV radiation<span> and </span>prevents<span> most of it from </span>reaching<span> the </span>Earth<span>. ... This means that more </span>ultraviolet radiation<span> can pass through the atmosphere to the </span>Earth's<span> surface, particularly at the poles and nearby regions during </span>certain<span> times of the year.
I hope that this helped you! Good luck. :)</span>
The answers to this question are the following:Base- pairing rule where RNA was made where the U strand being paired with A-strand and the C strand being paired to G-strand in transcription within the nucleus. This is done along with the strong strand in "DNA."
The answer in the first line is "Base-pairing rule" while in the second line is "DNA"
B) Chemical Energy
It makes light energy into chemical energy for the plant to use.
Hope this helps :)