The instructions for making proteins are coded in the of a cell. in a eukaryotic cell, these instructions are located in the .

The instructions for making proteins are coded in the ADN and ARN of a cell. In a eukaryotic cell, these instructions are located in the nucleus .

Explanation:

One of the most important differences between prokaryotic and eukaryotic cells is the presence of a cell nucleus. Bacterial DNA is loose and is a circular molecule without association to histonic proteins. Eukaryotic DNA is a linear molecule of DNA that is associated with histones.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy.

so, according to what that says, i believe it's hypertonic and hypotonic.

good luck!