Your science teacher asks you to build a model of a cell. the model should look like a city, and buildings in the city should represent parts of a typical cell. each building's real-life function should be like the function of the organelle it represents. for example, the vacuole of a cell, which stores water, could be a water tower in your cell city model. what building should represent the nucleus, and why?

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.

Gene expression is the activation of a gent that results in a question 1 options: protein dna mitochondria

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?