do Ecosystems constantly go through cycles of regeneration and change?

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false

Match each description to the level of organization

What does the formula below represent? co2 + h20 → c6h1206 +02 a: photosynthesis b: ionization of glucose c: hydrolysis of carbohydrates d: dehydration