D. Bacteria
Nitrogen-fixing bacteria found in both the soil and root nodules of leguminous plants fix nitrogen into a form that can be used by plants.
I think the answer is botany
Answer:
Explanation: They both require the binding of Ligand.
Differences:
Intracellular receptor is located in cytosol. It can be found in the nucleus. It leads to slower responses related to gene transcription. They are steroids. Ligands are lipophilic, small, uncharged; diffuse through membrane and bind to receptor.
Plasma membrane receptor-
The Ligands are hydrophobic and don't have to be small and uncharged; bind only to membrane receptor. Extracellular signaling molecule binds to cell membrane receptor and triggers rapid cellular response (protein hormone)
Trees are a crucial part of the<span> carbon cycle</span>, a global process in which carbon dioxide constantly circulates through the atmosphere into organism and back again. Carbon is the second most valuable element to life, you know, after water. Anyway, trees take carbon from the atmosphere through <span>photosynthesis </span>in order to make energy. This carbon is then either transferred into oxygen and released into the air by <span>respiration </span>or is stored inside the trees until they decompose into the soil. Therefore, the absence of trees would result in significantly HIGHER amounts of carbon dioxide in the air and LOWER amounts of oxygen! The filthy air would also be full of airborne particles andpollutants like carbon monoxide, sulfur dioxide and nitrogen dioxide and its temperature may increase by up to 12 F.
