The most complex level of organization within large organisms, such as elephants, is the organ system. true false

Identical marbles are released from the same height on each of the following four frictionless ramps . compare the speed of the marbles at the end of each ramp. explain your reasoning

You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer