Why is an action potential conducted in only one direction, from an axon hillock to an axon terminal? Why is an action potential conducted in only one direction, from an axon hillock to an axon terminal? Second messengers activate channels sequentially. The number of voltage-gated ion channels increases along the length of the axon. The membrane channels upstream are refractory and cannot open. The channels are progressively easier to open down the length of the axon.

How will you manage your time to accomplish the necessary tasks both on the job and at home?

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

What are some natural processes that represent physical and chemical changes?