<span>palisade and spongy layers of the mesophyll are </span>the two layers of the plant containing chloroplasts
<span>The ecosystem is the lowest level of the biosphere hierarchy to include weather patterns and soil conditions.
in the whole biosphere hierarchy, ecosystem actually placed as the second highest (1 place below biosphere)
But there are only 2 hierarchy that include weather and soils, and those hierarchies are biosphere and ecosystem. So technically the ecosystem will be the lowest in this matter</span>
<span>The Archaea constitute a domain and kingdom of single-celled microorganisms.</span>