Yes. Oxygen crash led to Cambrian mass extinction
Explanation:
Anabolism requires energy to grow and build. Catabolism uses energy to break down. These metabolic processes work together in all living organisms to do things like produce energy and repair cells.
Catabolic reactions release energy, while anabolic reactions use up energy.
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Answer:
Xylem,phloem and tissues from vascular systems produce stem
Xylem + phloem+ tissues from vascular systems = stem ( transport systems)
Contraction is the answer
They no longer will be able to produce adequate amounts of ATP.