3. what do nucleic acids and phospholipids have in common?
they both contain phosphate groups
they are both important cell signaling molecules
they are both important energy sources
they are both important for all cell structure

they both contain phosphate groups

Explanation:

A nucleic acid has a phosphate molecule at 5’ Carbon. This phosphate bonds with the 1’ Carbon of the next nucleic acid forming a phospho-diester bond. A phospholipid, as the name suggests, also comprises of a phosphate molecule that makes the hydrophilic end of the molecule. Attached to the phosphate molecule is a glycerol molecule and two fatty acid chains (the hydrophobic end of the molecule). Phospholipids are usually amphipathic and are significant components of the cell membrane.

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation:

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.