20 pts
explain how mountain chains provide evidence to support the theory of continental drift.

( , this assignment's due today )

What is turgor pressure, what causes it, and what does it do for a plant?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above