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.
Have you ever wondered why the sea is blue? Have you noticed that the ocean appears a different color in different regions? Here you can learn more about the color of the ocean. Depending on where you are, the sea may look very blue, green, or even gray or brown. Yet if you gather a bucket of sea water, it will look clear. So why does the ocean have color when you look into, or across it?