According to one theory, earth's moon accreted to form its current structure following a giant impact between earth and another celestial body complete the paragraph to describe the process of accretion following the impact, a section of earth broke off. as a result, large pieces of debris started to revolve around earth. the debris was held close to earth by earth's the debris frequently collided to form a planetesimal. as the planetesimal grew in size, its gravity increased. this gravitational force pulled in even more which led to the accretion of the moon.

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 are the two main phases of a cell cycle

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided