The Light Reactions Provide Energy Carriers For The Dark Reactions.
<span>The central region of the thoracic cavity containing the heart is called the </span>mediastinum. It is enveloped by loose connective tissues. Other than the heart, it also contains the heart's vessels, cardiac nerves, trachea, thoracic duct, and lymph nodes among others located in the central chest area.
<em>Answer: Competition is most typically considered the interaction of individuals that vie for a common resource that is in limited supply, but more generally can be defined as the direct or indirect interaction of organisms that leads to a change in fitness when the organisms share the same resource.</em>
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<span>Single-celled organisms that do not have a membrane-bound nucleus are called Prokaryotes
So, option B is your answer.
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