How does each cell accomplish a wide variety of activities?
a.
the plasma membrane divides up the tasks.
b.
all cell parts are similar.
c.
molecules are transported in and out.
d.
the organelles have specialized functions.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.