Plss due today! Will mark 1. Describe capillary action and give an example.

2. What is density?

3. What types of substance have pH values less than 7?

4. Give an example of a substance with a high concentration of H+ ions.

5. Give an example of a substance with a low concentration of H+ ions.

6. What is specific heat?

7. Does water have a high specific heat? What does this mean?

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.

Which type of bacterial reproduction is depicted in the diagram?

Acquired mutations can result from radiation pollution toxins inheritence select all that apply