Describe how photosynthesis enables plants, animals, and other organisms to survive in a closed ecosystem such as Biosphere 2. In your answer, be sure to trace how matter flows through the ecosystem as a result of photosynthesis.

What condition is kept close to its set point in osmoregulation? a. body temperature b. platelet count c. blood glucose level d. water balance

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

Does all the energy stored by the phytoplankton reach the top level of the pyramid