The correct answer for this question is "Epiglottis". The Epiglottis is responsible for cutting off the passage way to the airway while swallowing/eating food to prevent the food from being inhaled by the body.The Epiglottis has a leaf-like shape structure with a cartilage that covers the passage way into the air ways of the body.
IDRK
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Answer:
<u><em>Complementary base pairing is important in DNA as it allows the base pairs to be arranged in the most energetically favourable way</em></u>
<u><em>It is essential in forming the helical structure of DNA. It is also important in replication as it allows semiconservative replication</em></u>
<u><em>A complementary base is either of the two nitrogen-containing sections of a nucleotide that bond together to connect strands of DNA or RNA</em></u>
<u><em>DNA and RNA are complex molecules that are central to genetics and both are made of things called nucleotides.</em></u>
Explanation:
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Photosynthesis has to do something with science
