Respiration is the ability to break down nutrients to make energy, so the answer should be the fourth option.
Ribosomes and mitochondria
Reproductive isolation means they do not meet with each other or do not produce for tile offspring
I think it is carbohydrates
<span>The mineral crystals in obsidian are too small to see without a microscope. This is because the rock cools so rapidly from magma that crystals barely have time to form. Obsidian is a normally happening volcanic glass framed as an extrusive molten shake. It is delivered when felsic magma expelled from a well of lava cools quickly with negligible precious stone development.</span>
