109 exact :D hope this helped! Have a good day
It is clinically used to separate <span>a mixed population of macromolecules such as DNA or proteins in a matrix of </span>agarose<span>, which is one of the two main components of agar.</span>
Also referred to as behavioral and cognitive neuroscience, the field has been used to study child development in highly stressful environment compared to to others especially with regards to school learning. Other examples include its use in the diagnosis of irrelegular sleep disorder and insomnia
<h2>Answer</h2>
- Wind
- Sunlight
- Plants
- Soil
- Coal
- Minerals
- Water
- Animals

In short it's natural resources.
Answer:
Answer is A signal is sent down an exon within a nerve cell.
Explanation: