Explain the role and importance of pH, Salinity, Oxygen, Nitrogen, Phosphorus, and Carbon Dioxide on aquatic ecosystems.

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

Give the biological term for: structures that display characteristics of living organisms only within living cells

How do accessory pigments chlorophyll?