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A key step in the evolution of vascular plants was the ability to produce ____, a strengthening polymer in the walls of cells that provide support and conduction.
Geological Processes
The natural dynamics and events, such as volcanic eruptions, earthquakes, and erosion, which shape the Earth's landscape and structure.
Biodiversity
The variety of species of plants and animals existing at any given time.
Aldo Leopold
Renowned American author, philosopher, scientist, ecologist, forester, conservationist, and environmentalist, best known for his book "A Sand County Almanac."
Silphium Plant
An ancient plant, now possibly extinct, that was used for various culinary and medicinal purposes in the Mediterranean region during classical antiquity.
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