Suppose you are a mycologist trying to identify an organism you think is a fungus. Upon studying the organism, you observe that it has cell walls. You also observe asexual spore production and a mycelium without a membrane between sections of its branches. (Mycelium is the reproductive part of a fungus. It looks like long, branching threads.) The spores appear to be nonmoving. Can you classify the organism? Explain. What more do you want to know, 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.

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water