Photosynthesis makes the glucose<span> that is used in </span>cellular respiration<span> to </span>make<span> ATP. The </span>glucose<span> is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in </span>cellular respiration<span> oxygen is combined with hydrogen to form water.</span>
Answer:
Less energy is available to the upper trophic levels.
which is more likely to be the cause of down syndrome the egg or the sperm?
The egg
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