Artificial selection (also known as selective breeding) occurs in many different domesticated plants (especially crops and flowers) and animals (especially farm animals and dog breeds). list one example of artificial selection in a domesticated plant and another example in a domesticated animal. explain (1) what trait is selected for and (2) why, and (3) include a picture. you many not use any examples given in the lesson, or submitted by other students.

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.

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

9. technology can bring both good and bad things. building a vertical farm can increase food supplies in cities (good), but it may cause unemployment in rural areas (bad). give another example of both the good and bad sides of a technological advancement (5 noints)