I believe doubling the speed of the marble will increase the kinetic energy when it rolls down a ramp
Sorry if wrong
Natural variation provided the phenotypes that natural selection then acted on, over time causing evolution
Scientists estimate that the fishing industry kills between 0.97 and 1.97 trillion wild fish worldwide every year, further straining fragile oceans and other waterways that are already poisoned by pollution from oil spills, agricultural runoff and immense amounts of garbage.
Answer: the answer is b
Explanation: cells are able to synthesize their entire complement of
Biomolicules
