What do animals use to get oxygen to every cell? a)lungs
b)red blood cells
c)osmosis
d)all of the above

Acar traveld with an average speed of 60 miles per hour for 2 hours. how far did it travel

Aneuron is stimulated with an electric pulse. the action potential is detected at a point 3.70 cm down the axon 0.0052 s later.when the action potential is detected 7.20 cm from the point of stimulation, the time required is 0.0063 s. what is the speed of the electric pulse along the axon? (why are two measurements needed instead of only one? )

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things