carbon cycle crossword

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Across
  1. 2. Someone who studies fossils of plants and animals in order to reconstruct past ecosystems.
  2. 4. A single-celled type of fungi that produce the enzymes, which convert sugar to alcohol and carbon dioxide.
  3. 5. in the sea and to use as flavoring
  4. 9. we use it to get a better immune system from that spesifc disease
  5. 10. In human nutrition, a nutrient that is required in large amounts and provides the energy needed to maintain body functions and carry out the activities of daily life.
Down
  1. 1. A type of rock that contains a lot of iron but not much silica
  2. 3. A hormone produced in the stomach, duodenum and pancreas that stimulates the release of hydrochloric acid in the stomach.
  3. 6. A hydrogen-containing substance that is capable of donating a hydrogen ion to another substance.
  4. 7. In science, a person interested in natural history.
  5. 8. The state of matter distinguished from the solid and liquid states. Gases have the ability to diffuse readily and to become distributed uniformly throughout any container.