An athlete trains for a weight-lifting event in the olympics. what type of muscle fiber would be the most important for this athlete to develop?
select one:
a. slow twitch, because they contain more mitochondria than fast twitch fibers
b. fast twitch, because they primarily use aerobic respiration
c. fast twitch, because they primarily use lactic acid fermentation
d. slow twitch, because they can contract for long periods of time without fatiguing

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.

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.

If your blood becomes too concentrated with iona, what will happen to the red blood cells