The nervous system is stimulated from the environment through sensory receptors
I'm not sure if you needed a translation or an answer but i'll give both:)
"Why is it that in some countries it is day while in others it is night"
because at different times of the day the sun hits different areas of the earth. I hope this helps!
porque en diferentes momentos del día el sol golpea diferentes áreas de la tierra. ¡Espero que esto ayude
<span>A messenger is required to translate the coding into actual physical proteins. You can't have proteins be directly built from DNA because it is fragile and meant as storage, not manufacturing, for a cell. RNA and tRNA are used to transfer the instructions from DNA to organelles designed for manufacturing.</span>
True step one is making observations
