Which of the following is not an example of interactions between biotic and abiotic factors in an ecosystem? a. flowers opening at dawn and closing at night b. bears hibernating in winter c. male elk fighting over a female d. Monarch butterflies migrating to Mexico for the winter Please select the best answer from the choices provided A B C D

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