List four reasons to use macroinvertebrates as a guide to study freshwater biology?
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Choose a freshwater ecosystem and describe it. Identify two species and describe their relationship to one another using terms used from the lecture.
Life Science Biology
Ch. 31: Communities and Ecosystems
What changes have taken place with the sticklebacks as they adapted to a freshwater environment?
Why can't humans drink sea water?
It would seem to be a huge evolutionary advantage for an animalto be able to drink sea water rather than have to rely on freshwater, and it's provably not impossible due to the existence of seamammals that must filter the sea water somehow.
Could someone explain to me any likely reasons that this is thecase?