Answer: The ocean dissolves carbon dioxide from the atmosphere, and it is used by phytoplankton during photosynthesis.
Food moves through the digestive system tract by peristalsis, which is produced by wavelike contractions of INVOLUNTARY muscles
You're correct because when birds hit their max altitude it's harder to breathe and to minimize the time of there flight they store immense amounts of oxygen in their lungs.
Answer:
since it says producer im thinking maybe wheat because you can eat wheat, it has to be wheat
Explanation:
