X2 - 9x + 20 O A. (x-2)(x - 10)
O B. (x-2)(x + 10)
O C. (x – 4)(x + 5)
O D. (x – 4)(x - 5)

The body is protected against harmful flu viruses by

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.

Which mechanism of transport takes place when solute particles move from a region of high concentration to a region of low concentration? active diffusion isotonic osmosis