Answer:
Archaea are found in the harshest environments on Earth, and are the oldest known organisms on Earth, appearing in the fossil record over 3.6 BILLION years ago
Explanation:
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We need carrier proteins for steroid hormones because they help in the transportation from the cell they were released from to their target cell.
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<span>The ecosystem has land but with high sea levels</span>
Carbon dioxide and photosynthesis
