What is meant by the term bystander effect? O A. People can find that a group may be too large to have any cohesiveness.
O B. People tend to have more fun when they are in groups instead of being alone.
O C. Individuals tend to take more responsibility for reporting crimes than do groups of people. O D. Individuals may have difficulty describing a person who committed a crime.

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 experiment would most likely contain experimental bias

In which situations is the principle of cross-cutting relationship useful in determining relative age?