Ascientist discovers a deep bowl like divot under the ocean off the coast of eastem Mexico that is many kilometers across. The layers of the ground all around the continent from around the time that structure formed contain large
amounts of indium and a larger number of fossils than is normally found What most likely caused the bowl-like
structure
O a meteorite impact
O an asteroid impact
O an indium spike
O a Kuiper object impact

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.

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called