LD50 refers to:
A. The dose (amount per unit body weight) of a chemical at which first 80 % test animal population dies within a period of time by administering chemicals through ingestion
B. The concentration of a chemical at which first 50 test animal population dies within a period of time
C. The dose (amount per unit body weight)of a chemical at which 50% of a test animal population dies within a period of time by administering chemicals through ingestion
D. The dose (amount per unit body weight) of a chemical at which last 50 test animal population dies within a period of time by administering chemicals through ingestion
Answer:C
LD50 refers to:
A. The dose (amount per unit body weight) of a chemical at which first 80 % test animal population dies within a period of time by administering chemicals through ingestion B. The concentration of a chemical at which first 50 test animal population dies within a period of time C. The dose (amount per unit body weight)of a chemical at which 50% of a test animal population dies within a period of time by administering chemicals through ingestion D. The dose (amount per unit body weight) of a chemical at which last 50 test animal population dies within a period of time by administering chemicals through ingestion