Answer:
Ammonia
Explanation:
Nitrogen fixing bacteria turn nitrogen into ammonia and plants can absorb it
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Answer:
Animals migrate to eat insects that live there year round.Many animals in the tundra hibernate during the long, cold winter months.
Animals are most active in the short summer as the snow melts and shallow wetlands form
Explanation:
Above a pH of 7, pepsin becomes irreversibly denatured. Pepsin was the first enzyme to ever be discovered, and it was discovered by <span>Theodor Schwann.</span>
