Which statement best describes saturation?
a. saturation refers to the total rainfall for a year.
b. saturation refers to the lack of rainfall on a given day.
c. saturation occurs only in hot, dry climates.
d. saturation is reached when the amount of water vapor in the air has reached the maximum amount.

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.

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

What is the inability of an individual or a society to achieve a minimum standard of living known as ?