Which of the following statements best describes the difference between a noninfectious and an infectious disease? O A Noninfectious can be caused by environmental factors and infectious diseases are caused by pathogens. OB Noninfectious can be caused by bacteria and infectious diseases are caused viruses. C. Noninfectious can be caused by viruses and infectious diseases are caused bacteria and fungi. D. Noninfectious can be caused by pathogens and infectious diseases are caused environmental factors.​

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 type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic