Which of the following is an example of facilitated diffusion? A. liquid molecules colliding with one another
B. reaching an equal amount of molecules on both sides of a membrane
C. Red blood cells allowing glucose to move in and out
D. cytoplasm keeping an organelle in place

How many years would it take the atlantic ocean to grow 500 centimeters? show your work.

How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the: