Why can't water pass through a cell membrane? -All of these are true.
-The lipid part of a phospholipid is hydrophobic and repels water.
-They can, if they have a channel protein to help them across.
-Water is polar and the lipids are non-polar so they repel each other.

2. what process do mrna and trna work together to complete? (3 points)

This map shows how climate change might affect precipitation patterns in the great plains of the united states by the end of this century. brown shoes a decrease in percipitation, and blue shows an increase. the maps differ based on the predictive levels of green house emissions. the maps shows that northern area should get a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels. southern areas show a. more pracipations regardless of emmissions b. less pracipation, regardless of emmissions levels c. more precipitation, but only when emission levels. to use these maps to prepare for natural disasters in the great plains, scientist need to ask? a. how many tons of emissions were used at the basis of the map. b. which types of fossil fuels are used in the great plains c. if you think the above is wrong it's probly c the question is cut off

Using meiosis, the sporophyte produces spores that are .