Researchers developing prosthetic devices have recently discovered a way to . cure populations of the hiv/aids virus . grow new brain cells in patients with post-traumatic stress syndrome . fuse patients’ nerves to robotic limbs . attach artificial limbs to the bodies of injured veterans . 2. who resigned the presidency of egypt as a result of “arab spring” demonstrations? . bashar al-assad . hosni mubarak . muammar gaddafi . mohamed morsi . 3. compared with americans, who spend little more than 15 percent of their income on food, people in less developed countr

The correct answer for the first question is the third statement. Researchers developing prosthetic devices have recently discovered a way to fuse patients' nerves to robotic limbs. In number two, the correct answer is the second person in the choices. Hosni Mubarak resigned the presidency of Egypt as a result of "Arab Spring" demonstrations. 

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )