Which of these is a bast fiber?

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Multiple Choice

Which of these is a bast fiber?

Explanation:
Bast fibers come from the phloem, the inner bark of a plant stem. They are long, strong fibers harvested from the stem’s bast tissue and are used to make sturdy textiles. Flax is the classic example of a bast fiber; its stems yield the fibers used to make linen. Silk fibers are produced by silkworms and are protein-based, not plant bast fibers. Mineral fibers, like asbestos or glass, are inorganic. “Textile fibers” is a broad category, not a specific bast fiber.

Bast fibers come from the phloem, the inner bark of a plant stem. They are long, strong fibers harvested from the stem’s bast tissue and are used to make sturdy textiles. Flax is the classic example of a bast fiber; its stems yield the fibers used to make linen. Silk fibers are produced by silkworms and are protein-based, not plant bast fibers. Mineral fibers, like asbestos or glass, are inorganic. “Textile fibers” is a broad category, not a specific bast fiber.

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