Describe how neurons communicate. To do this you must address: resting membrane potential: graded potentials: IPSPs; EPSPs; the role of sodium,
potassium and calcium generation of an action potential; inotropic vs
metabutropic receptors, why is an AP only one direction; how are
neurotransmitters released; continuous vs saltatory conduction; spatial vs
temporal summation,

For the sensory system to work, neurons should have the option to impart and get signs. Neuronal Charged Layers are impermeable to charged atoms or particles. To enter or leave the neuron, particles should go through uncommon proteins called particle channels. Some particle channels should be actuated to open and permit particles to pass into or out of the cell. The distinction in all out charge between within and outside the phone is known as the film potential.

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.