The diagram below shows examples of interdependence among aquatic 12 points organisms. In the diagram, organisms either use gases (letter a) or give
off gases (letter b). What should letters a and b be labeled in the
diagram? Choose one organism and explain how gases a and b are used
in that organism.
For full credit, correctly identify both substance a and substance b (6 pts) and describe how
gases a and b are used using one of the organisms in the diagram as an example. (6 pts)
Floating
water plant
Small water
animals
Water plant
with roots