The correct answer would be: dependence on nonrenewable resources.
A nonrenewable resources are resources that cannot be readily replaced by natural means, such as fossil fuels (oil, natural gas). The use of these resources is not sustainable because their formation takes billions of years. The whole world is dependent on these non-renewable sources but they are becoming more scarce daily.
The correct answer is known as a "motor neuron".
A motor neuron or also known as a motoneuron is described as <span> a neuron whose </span>cell body<span> is </span>placed inside the<span> motor cortex, brainstem or the spinal </span>cord<span>, and whose axon </span>initiatives<span> to the spinal cord </span><span>or </span>the exterior<span> of the spinal </span>cord<span> to </span>immediately<span> or </span>not directly manage<span> effector organs, </span>specifically muscle mass<span> and glands. </span>
Isotonic because water is going both in and out of the cel