During osmosis, the semi-permeable membrane is one that:
a. does not allow any particles to pass through.
b. allows only very large particles through.
c. decides what particles to let through based on cell signals.
d. allows only very small particles or water through.

Which chemical equation is unbalanced? which chemical equation is unbalanced

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin