Answers: 3
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, 21.06.2019 18:30
Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide β hydrazine + water b. nitrogen + water β hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide β nitrogen + water d. water + hydrogen peroxide β nitrogen + hydrazine
Answers: 3
Biology, 21.06.2019 21:00
What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?
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Biology, 21.06.2019 23:00
Use this new information to determine the parentsβ genotypes (indicated by red arrows). then calculate the probabilities that the second male offspring will have each condition. drag one pink label to each pink target and one blue label to each blue target. then use the white labels to answer questions 1 and 2. labels can be used once, more than once, or not at all.
Answers: 3
How do scientist use the evidence they gather...
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