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.
At What Temperature Does Ocean Water Freeze? Ocean water freezes at 28.4Â°F (-2Â°C). Ocean water freezes at a lower temperature than fresh water due to its salt content, which interferes with the waterâs ability to form ice. A look at how ice is formed will help to clarify why the addition of salt, or any solvent, requires a lower temperature to freeze.