Stem cells. your friend had a spinal cord injury after a bad car accident. the medical team has decided that he is a good candidate for a clinical trial using stem cell therapy. your friend has not had a biology course since high school, so you decide to write him a letter sharing your knowledge of stem cells. include in your letter a description of the biology of stem cells and how these cells are unique from other cells. contrast the different types of stem cells, including pros and cons of each. explain how stems cells are can be used to treat diseases and injury, with special focus on spinal cord injuries. conclude with your own opinion.

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. makes predictions