The first one iss shrimp certain squid and fish
The answer in this question is known as antisepsis. Antisepsis is the chemical agents that is used directly on exposed body surfaces to destroy or inhibit vegetative pathogens. Antisepsis is defined as the practice of using antiseptic to eliminate the micro-organism who causes of having a disease.
many advantage of genetically modified crops. such as diseases free, increase yield according to own desire, we introduce vit A in Golden rice that is useful , etc