Http://histologyolm.stevegallik.org/node/124
this should help you
Upwelling waters occur when the warm water, on the surface of the oceans in the equatorial regions are pushed towards the poles by winds and the denser cold currents on the ocean bottom move up to replace the displaced waters. The denser currents are usually nutrient-filled and are an ideal substrate for growth of phytoplankton as they warm up on the surface. The algae bloom attracts fish and other producers in the sea. The producers consequently attract other carnivorous fish.
Cell - Different cells make up organs
Cell Membrane - Protect the cell
Cytoplasm - Contains all organelles and cell parts
Nucleus - Contains the cell's genetic material
Nuclear Membrane - Allows small molecules, ions, and/or proteins to move in and out of the necleus
Ribosomes - Where RNA is translated to protein
Endoplasmic Reticulum - A manufacturing or packing system for the cell
Golgi Bodies - Gathers simple molecules and combines them to be more complex
Mitochondria - Energy factories of the cell (Side note: Always remember "Mitochondria is the powerhouse of the cell")
Lysosomes - Digest excess or worn organelles, food particles, and viruses or bacterias