Scientists have found evidence that asteroids collided with Earth during its past. What have these impact events been connected to? A. neither global climate changes nor mass extinctions

B. both mass extinctions and global climate changes

C. global climate changes but not mass extinctions

D. mass extinctions but not global clim changes

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

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

Me with biology endocrine system crossword also image left i need with hw