Hi the answer is freshwater has more oxygen than seawater.
Hope this helps you.
Answer:
D
Explanation:
Only some organisms reproduce asexually, only plants perform photosynthesis, and most creatures consume oxygen and release carbon dioxide. D is the correct answer both by process of elimination and because the simplest life form is the single celled organism, which still has one cell. All complex life is made out of many many many cells.
Photosynthesis<span> and </span>cellular respiration<span> are complementary processes by which living things obtain needed substances.</span><span> They both consume and create the same substances (water, glucose, oxygen, and carbon dioxide) but in </span>different<span> ways.
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