1. fresh lava traps the direction of the earth's magnetic pole as it hardens. 2. the youngest rock is formed at the center of a mid-ocean ridge. 3. stripes of the magnetic rocks are visible on the ocean floor. true or false?

Diagram of the evolution of land plants?

Which direction does the energy flow in this energy pyramid ?

Which of the following is the best definition of a eukaryota? a. a one-celled organism that does not have a membrane-bound nucleus b. a one-celled organism that does not have a cell wall c. an organism whose cells each contain a membrane-bound nucleus d. an organism whose cells each have a cell wall