John is a veteran who suffered traumatic brain damage while in combat. despite having all of his limbs and suffering no other health symptoms, he experiences phantom pain in his extremities. what could be going on with his brain?

Imagine that a mouse has white fur because of a mutation in its dna. which of the following conclusions can be drawn

What is the next step in muscle contraction after the actin changes shape

You are given an electron micrograph of a bacterial cell. in the micrograph you can clearly see three thin layers of different densities surrounding the cell. based on the micrograph, you can infer that this cell is and would appear after application of the gram stain procedure. gram-negative / pink gram-positive / purple gram-positive / pink gram-negative / purple