Explain the process von helmont used to eliminate soil as a source of nourishment and focus and water.

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

This is the main structural axis of the plant that supports leaves, flowers and fruits; transports fluids; stores nutrients and produces new tissue.

The many stone tools, fragmentary animal bones, and teeth found at gran dolina, spain, indicate that hominids there? a. processed and consumed animals and other hominids. b. did not differ appreciably from earlier asian homo erectus. c. were similar to later homo sapiens. d. none of the above