After carrying out some tests at a local stream, you discover that the pH in the stream is extremely low. Based on this, you should
tell your friends to
A)
go home and play Xbox.
B)
build a raft to raft down the stream.
swim in and drink the water from the stream.
D)
not swim in or drink the water from the stream.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.