D. Oxygen and metal
They usually contain some form of metallic cation, given that carbonates are the most distributed minerals in the Earth's crust.
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Answer:
These are found in the <em>submucosal</em><em> </em><em>plexus</em>
Explanation:
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size hence streams are little and rivers are bigger than streams because a stream connects between two or more rivers
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Asexual reproduction produces genetically similar or same offspring whereas sexual reproduction [produces genetically varied offspring.