A factory in Japan had been dumping mercury into Minamata Bay. Certain microorganisms in the water were able to change the mercury into a form that the plankton could use. Which most likely happened next?
A B C D
The organisms built up a resistance to the mercury. The mercury passed through the food chain. The plankton made the mercury safe. The fish would not eat the plankton.
Question: A factory in Japan had been dumping mercury into Minamata Bay. Certain microorganisms in the water were able to change the mercury into a form that the plankton could use. Which most likely happened next?
(A) The organisms built up a resistance to the mercury.
(B) The mercury passed through the food chain.
(C) The plankton made the mercury safe.
(D) The fish would not eat the plankton.

Answer: (B) The mercury passed through the food chain.
Answer: (A) The organisms built up a resistance to the mercury.
Question: A factory in Japan had been dumping mercury into Minamata Bay. Certain microorganisms in the water were able to change the mercury into a form that the plankton could use. Which most likely happened next?
(A) The organisms built up a resistance to the mercury.
(B) The mercury passed through the food chain.
(C) The plankton made the mercury safe.
(D) The fish would not eat the plankton.
Answer: (B) The mercury passed through the food chain.