Asingle galaxy is best described as a) millions of stars. b) billions of stars. c) thousands of stars. d) trillions of stars.

The body is protected against harmful flu viruses by

This is collection of data made by comparing objects in standard units. in science, the units are metric.

Will ! a cell containing a 3% sucrose solution is placed into a beaker containing a 7% sucrose solution. assume the cell’s membrane is permeable to water, but not permeable to the sucrose. where will the water diffuse? explain.