What are the three most widely used methods to gather data? What are the differences between them?

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

One of the reasons that stars are so large is because

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.