Bulbs must have which outer layer?

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Multiple Choice

Bulbs must have which outer layer?

Explanation:
The outer layer is a tunic. In tunicate bulbs, a dry, papery tunic forms a protective covering around the bulb, shielding the fleshy inner scales and helping reduce water loss and damage. This distinguishes tunicate bulbs (like onions and tulips) from scaly bulbs that lack a tunic. The root cap belongs at the tip of a root, not the bulb itself, the bulb basal plate is the bottom region where roots emerge, and the inner fleshy leaves are the scales.

The outer layer is a tunic. In tunicate bulbs, a dry, papery tunic forms a protective covering around the bulb, shielding the fleshy inner scales and helping reduce water loss and damage. This distinguishes tunicate bulbs (like onions and tulips) from scaly bulbs that lack a tunic. The root cap belongs at the tip of a root, not the bulb itself, the bulb basal plate is the bottom region where roots emerge, and the inner fleshy leaves are the scales.

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