Why do cells have a plasma membrane a) separate proteins from nucleus b) distinguish plants from animals c) define the size of the cell d) separate the inside of the cell from its environment

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.