Dissolved oxygen is needed to
survive. Two ways that dissolved oxygen can come from is contact with the
atmosphere and plants in water. Carbon dioxide and oxygen works in a cycle in
the aquatic ecosystem. Plants produce the oxygen, then animals use it. After
the animals use oxygen, they produce carbon dioxide. The plants then take in
the carbon dioxide animals’ produce. So both plants and animals work off of
each other. It is a constant cycle of producing and using by interchanging who
uses what. However, at night the dissolved oxygen levels decrease. This is due to
the sunlight not being present. No sunlight means no photosynthesis being
produced. This is why dissolved oxygen levels are decreased at nighttime.
No comments:
Post a Comment