A sorus<span> is a cluster of sporangia in ferns and fungi. In fungi and lichens, the </span>sorus is surrounded by an external layer.<span> The sori is a cluster of sporangia which contains the spores in plants like ferns & moss. The spores are essential for reproduction.</span>
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<em><u>An ethic could be a set of ethical principles of right and wrong that guides behavior. Ethics influences however folks create selections, however they live a decent life and their rights and responsibilities.</u></em>
The correct answer is - They supply the energy needed for living processes.
Both the carbon and the nitrogen, are gases that are crucial for the survival of the organisms on the planet. They are mostly used by the producers in the ecosystems, as they need them to manage to perform their cycles, get nutrition, and of course energy. The producers are the basis of the ecosystems, so if they do not have a healthy supply of carbon and nitrogen, the ecosystems on the whole planet will collapse. The carbon and the nitrogen later go from one organism to another as the energy is transferred, and usually end up back into the atmosphere again.
Objects/people have the same MASS at all times, but if the acceleration of gravity on the object changes, i.e. you go to another planet, the objects WEIGHT changes.