Will mark write in your own ! 25 points

write a paragraph of at least three sentences about stem cells. the paragraph should include what stem cells are, the controversy around them, and your opinion about using them for research.

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? 1 even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true. 2 the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. 3 flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. 4 in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency.

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi