An axon lacking a myelin sheath is said to be

An axon lacking a myelin sheath is said to be unmyelinated and signal conduction, which occurs when a wave of depolarization excites voltage gated channels immediately distal to action potential.

Explanation:

answer; i believe the correct answer is ( proteins );

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.