Which of these is not a way, or a proposed way, to store nuclear fuel rods after they have been used in a nuclear reactor? a) putting them in a deep pool of water b) burying them in a deep underground storage facility c) sending them on the shuttle to be suspended in space d) putting them in concrete/lead casks and sitting at the reactor site

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.