Select the correct answer. Which criteria determine whether a heterogeneous mixture is a colloid or a suspension? A. whether its composition is uniform and transparent B. whether the particles do not settle for an extended period of time C. whether the ratio of components is fixed D. whether it can be separated into simpler substances through physical separation techniques

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

If i add water to oil what will happen

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of