1. A 250-ul sample is needed from a sterile vessel that is too thin to use with anything but a sterile pipet. Which pipet and pipet pump could be used to withdraw the mL equivalent of 250 uL from the
vessel?

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.

What substance has a mass of 9.5g and volume of 2.1cm^3

What must occur for air masses to form fronts