What distinguishes the photic zone from the aphotic zone in an aquatic ecosystem? Describe three ways in which scientists study ecosystems. How do nutrients enter aquatic ecosystems? In an ecosystem, what is the role of phytoplankton? What major ecosystem and economic services are provided b...
Describe the specific characteristics of this biome. What are the nonliving parts of the ecosystem? How does the biome wor Distinguish between the photic and aphotic zones. What are some characteristics of aquatic biomes? What are the characteristics of tropical waters, temperate waters and polar ...