Aperson has always enjoyed eating tuna fish. unfortunately, a recent study of the mercury content of canned tuna found that chunk white tuna contains 0.67 ppm hg. the u. s. environmental protection agency recommends no more than 0.1 μg hg/kg body weight per day. if the person weighs 72 kg, how often may he/she eat a can containing 6 ounces (1 lb = 16 oz) of chunk white tuna so that he/she does not average more than 0.1 μg hg/kg body weight per day?

Transpiration is the evaporation of water from

Salmonella typhimurium is a food-borne bacterial pathogen that can cause severe gastrointestinal disease. salmonella is often phagocytosed by macrophages that normally destroy bacterial pathogens, but this bacterium is somehow able to prevent the complete maturation of phagolysosomes. salmonella is able to tolerate the low ph of phagolysosomes, and in fact responds to the drop in ph by secreting toxins that interfere with other cellular responses. which of the following differences would you expect to contribute to the survival of a bacterium within an salmonella-containing phagosome, compared to a healthy phagolysosome? decreased activity of acid hydrolases increased activity of acid hydrolases decreased import of h+ ions increased import of h+ ions my guess is decreased activity of acid hydrolases but i'm not sure.

This group of organisms perform the process of ammonifcation. a. herbivores b. decomposers c. carnivores c. plants