Which example is a way that intercellular communication occurs?
a: a molecule is sent through the plasmodesmata of a plant cell.
b: a molecule is transmitted from one part of a cell to another to cause a response.
c: a signal is translated into action for a muscle cell to contract.
d: a signal is sent down an exon within a nerve cell.

Which answer lists the fundamental forces in order from strongest to weakest

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1