<span>Scientists are looking for a way to create cheap, safe, and sustainable energy.
Nuclear fusion is the process by which two atoms rapidly collide at each other forming a new nucleus. The energy of colliding and synthesizing has intrigued scientist into believing that this could be one of best sources of renewable energy. </span>
Answer: Of all the branches of complex animals, sponges are the only group lacking TRUE TISSUE.
Explanation:
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The correct answer to your question is <span>D. mushroom
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