Which system is affected when tobacco reduces the flow of oxygen to the brain, potentially leading to a stroke?.

Generally, investment philosophy is dividend into one category: conservative.

25 points fast click to review the online content. then answer the questions(s) below, using complete sentences. scroll down to view additional questions. online content: site 1. take the study skills assessment. identify one area in which you could improve. then describe what steps you will take to improve in that area.

In the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? 1. mammals lived before the precambrian era. 2. dinosaurs and mammals existed in the precambrian era. 3. dinosaurs evolved after precambrian organisms. 4. precambrian organisms evolved after dinosaurs. 5. precambrian organisms were the first life-forms to become fossilized, according to this sample.