1 Common triggers of an anaphylactic reaction include drugs, such as penicillin, insect stings, foods (peanuts, shellfish), X-ray dye, and latex. 2  The symptoms of anaphylaxis may vary and can include hives, tongue swelling, vomiting, and even shock.  If someone is at risk, avoidance is the best form of treatment.
Ocean regions with high concentrations of phytoplankton will have shades of blue-green depending upon the type and density of the phytoplankton population there. The basic principle behind the remote sensing of ocean color from space is that the more phytoplankton is in the water, the greener it is.
When sunlight goes through the water, water molecules absorb red light but reflect blue light, making the water appear a brilliant blue. Closer to Shore, the Ocean May Be Brown In areas closer to shore, the ocean may appear a muddy brown. This is due to sediments being stirred-up from the ocean bottom, or entering the ocean through streams and rivers. In the deep sea, the ocean is dark. That is because there is a limit to the depth of ocean that light can enter. At about 656 feet (200 meters), there isn't much light, and the sea is totally dark at about 3,280 feet (2,000 meters).