23 points neuron sends signals in the brain and body via: neurotransmitter only electrical impulses only neurotransmitter and electrical signals

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Ascientist is examinin the cell is disrupted when she damages one specific type of macromolecule g the function of macromolecules in a cell she notices that movenent of large molecules into and out of

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.