Biology, 29.01.2021 01:00 cordobamariana07
Aristotle's model of classification was used until the 1600s. Plants were categorized
by the size of their stems and animals by where they lived. What would be a
limitation of using this model?
Answers: 2
Biology, 21.06.2019 17:10
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.
Answers: 1
Biology, 22.06.2019 05:00
What organ systems are working to you cool down after a workout?
Answers: 1
Biology, 22.06.2019 09:00
How does photosynthesis show the conservation of mass and energy?
Answers: 1
Aristotle's model of classification was used until the 1600s. Plants were categorized
by the size o...
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