Atoms contain positively charged protons and negatively charged electrons. why doesn’t ordinary atom have no charge?

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? a). 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. b). flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. c). the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. d). even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true.

Justify your choice of an objective to use when starting your observation of the euglena wet mount; of the euglena are swimming to the left, which way should you move your slide to keep the organism in view

Accuracy is a measure of how consistently a result is determined by repeated evaluations a. true b. false