Which of the following represents a chemical change? select one: a. rocks being smoothed by rapid water movement b. the pink color of a rose c. iron's attraction to a magnet d. decomposition of stone due to acid rain

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity hurry!

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase