What is a major source of carbon in the marine ecosystem? a- calcium carbonate released by marine animals. b-carbon dioxide released during photosynthesis of marine plants. c-carbon dioxide released from the fossils of marine organisms

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

The production of cells during mitosis into specialized function is recombination or differentiation

Which greenhouse gas is emitted when burn fossil fuels for energy? a.nitrogen b.oxygen c.carbon dioxide d.helium