How does water get below the surface to become groundwater?

Water seeps into the soil from rivers and streams.
Water from oceans overflows, seeping into the ground.
Water from precipitation soaks into cracks in soil and rock.

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?