Which of the following is not a branch of biology?

The slope of a good speed time indicates ? a. velocity b. acceleration c. direction d. speed

The four giant gas points that are made primarily of lightweight elements are

Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?