Which two explanations are based on personal beliefs? DA. Observations made using telescopes can predict how a
constellation's shape will change.
B. People who are born under a certain astrological sign have a
tendency toward certain personality traits.
0 C. Chemical data collected from rock formations show that Earth is
billions of years old.
D. The arrangements of stars into constellations happened as a
result of the actions of supernatural beings.
E. Satellite observations show that North America is moving at a
rate of a few millimeters per year.

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.

How does the nervous system affect the excretory system?

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass