Which explains how an endangered species and extinct species differ?
a. an endangered species is one that no longer exists, while an extinct species is at risk of dying out.
b. an endangered species has a decreasing population, but an organism that lives is considered extinct.
c. an endangered species is one that is at risk of dying out, while an extinct species is one that no longer exists.
d. an endangered species has an increasing population, but an organism that no longer exists is extinct. idk what subject to put this in but can someone and fast

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.

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

The arrows indicate the direction of wind flow. which place experiences monsoons?