<span>Alexander Graham Bell demonstrated the vibration of a membrane in the eardrum happens when sounds are transmitted. He demonstrated how one hears.</span>
Answer: organic
Explanation: Its melting point is -44 °C
Answer:
Single celled organisms
Explanation: belonging to the domains Bacteria and Archaea. Prokaryotic cells are much smaller than eukaryotic cells, have no nucelus, and lack organelles. All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of polysaccharide.
<h2><u>
Answer:</u></h2>
<em>D. deep below ground, after being exposed to extreme heat and pressure</em>
Answer:
Explanation:
hipotesis rival debido a que son aquellas que se presentan como respuesta a un problema y han superado exitosamente contrastaciones empíricas.