Na (sodium), because alkali metals are not found freely in nature due to their high reactivity. (In this group are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr).
Answer:
a is correct
Pinna (earlobe) - external auditory canal - tympanic membrane - ossicles - cochlea - organ of corti - brain
Explanation:
Isokinetic exercise is a type of strength training. ... These machines control the pace of an exercise by fluctuating resistance throughout your range of motion. Your speed remains consistent despite how much force you exert. You can adjust the target exercise speed and range of motion to suit your needs.
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Muscle tension is determined by lots of factors including: (1) muscle force, depending on the amount of force that we exert into our muscles, the muscle tension also varies. (2) angle of pull. This is also a relevant aspect in determining the muscle contraction.