Carrie is making a presentation on solar winds. her notes of the steps that must occur for solar winds to form are below. 1. the stream of electrically charged particles collide with gas atoms, causing the latter to give off light. 2. the electrically charged particles flow outward in all directions as far as saturn. 3. the stream of electrically charged particles flows outward from the corona. 4. the particles of the solar wind flow along lines of the magnetic field. which shows the correct sequence in the formation of solar winds? a.1, 2, 3, 4 b.2, 3, 4, 1 c.3, 2, 4, 1 d.4, 2, 1, 3

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 of the following systems in absorbing oxygen and releases carbon dioxide

Indicate whether the following statements about the biases in the fossil record are true or false. a) inland species are more likely to be preserved than marine species b) organisms with hard body parts are more likely to be preserved than are those composed soft tissues. c) species that existed over a larger area are more likely to be preserved than species existing over a smaller area. d) organisms that lived very long ago are more likely to be found as fossils than organisms that lived relatively recently e) the fossils of larger organisms are more likely to be found than the fossils of smaller organisms