Functions of the cell membrane include the following, except:
a
regulate the exchange of essential substances between the cytoplasm and the external environment.
b
communicate with other cells.
c
isolate the cell cytoplasm from the external environment.
d
store genetic information for the cell.

What is the difference between an igneous, sedimentary and metamorphic rock

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above