Answer:
b concentration insid e and out side the cell
Answer:
glucose and oxygen:C6H12O6 and 6O2 respectively
Almost all the energy in ecosystems comes from the sun.<span>Energy is captured by producers and then passed in a linear progression from one trophic level to the next. At each level, much of the energy escapes the ecosystem as heat. Unlike this one-way flow of energy, matter is recycled within and between ecosystems. Elements pass from one organism to another and among parts of the non-living environment through closed loops called biogeochemical cycles.</span>
D) relieving fishing pressure on over fished species
