Between 1932 and 1968, a chemical factory in japan released mercury-laden wastewater into minamata bay. the mercury was modified to methylmercury by bacteria living in bottom sediments. this resulted in severe mercury poisoning in over 2,000 people. since people don't eat bottom sediments, what is the best explanation for how toxic levels of mercury ended up in affected people?

Which of the following statements is true of enzymes? a)they dont provide an active site for substrates to bind in a reaction b)they act on a specific type of substrate in a reaction c)they unusable after a reaction d)they change shape after a reaction

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms

How can an organ, such as the lungs, work for multiple body systems?