simplice

A 500-kilogram leatherback turtle (Dermochelys coricea) was accidentally entangled in a fisherman’s net in Balatan town in Camarines Sur province. Courtesy of Ryan Cediño

Shout out ko lang si.. Hi Phc-SuaseJ Lol

-is the administration of antigenic material to stimulate an individual's immune system to develop adaptive immunity to a pathogen. It can prevent or ameliorate infectious disease. When a sufficiently large percentage of a population has been vaccinated, herd immunity results. The effectiveness...

- crush mu! Hahahah... lol

-alas sharetea... :)