I think Autorhythmic fibers are fibers that are self excitable or on their own for example some cardiac muscle. They repeatedly generate action potentials that trigger heart contractions.They continue to stimulate a heart to beat even when it is removed from the body. In comparison to contractile fibers, autorhythmic fibers are self excitable and do not require nervous system stimulation to trigger contractions. Contractile fibers have stable resting membrane potentials of -90mV, when a contractile fibers reaches threshold by action potential, the voltage gated fast sodium ions channels will open.
A) unproductive wastelands I believe is the answer you are looking for.
Answer:
eukaryotic, because our body cells have nucleus and membrane-bound organelles
Answer:
The commercial application of ethylene gas are as follows:
The ethylene gas are important for the early ripening of fruits.
The elongation of shoot can be done by ethylene gas.
The flower stimulation and swelling of stem can be achieved by the use of ethylene gas.
The leaf abscission of ornamental plants can be done by the use of ethylene hormone.
