What could be a possible explanation why tectonic plates do not all move in the same direction? 1. the magma moves the plates in the same direction, but slab pull makes them move away from one another. 2. the magma moves in the same circular path, but the plates bounce against each other and change direction. 3. the magma moves in “cells,” which circulate in different directions, moving the plates in more than one direction. 4. the magma’s movement in the mantle is highly erratic and causes the plates to move in circles.

Which is the graph of the piecewise function f(x)? f(x) = image for option 1 image for option 2 image for option 3 image for option 4

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.