35. When substances move in and out of cells using energy this is called: a. active transport
b. passive transport
c. activation energy
d. selective transport

The influenza virus cause the flu, but not other diseases. why?

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

What is a group of organisms that are closely related and share similar characteristics