Which material is primarily a mixture of weathered rock and organic matter

What molecule contains an organisms genetic material, passed down from parents to their offspring

If the dimensions of a cube-shaped cell with a length, height, and width of 1 micrometer were to double, what would be the cell's new ratio of surface area to volume? a.3 to 1 b.4 to 3 c.1 to 2 d1 to 6

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient