EVERYDAY SCIENCE

Detailed explanation-1: -Bulbs are underground buds with the stem reduced to small discs on which short, fleshy storage leaves grow. These leaves are enclosed by thick scales. Bulb scales morphologically are the continuous sheathing leaf bases.

Detailed explanation-2: -The bulbs are composed of shortened, compressed, underground stems surrounded by fleshy modified scale (leaves) that envelop a central bud at the tip of the stem. In the autumn (or in spring, in the case of overwintering onions), the foliage dies down and the outer layers of the bulb become more dry and brittle.

Detailed explanation-3: -The bulb onion is another name for the onion. It is a plant that is a member of the Allium genus. It is not a stem or a root.

Detailed explanation-4: -The onion bulb is a modified stem because it consists of large numbers of fleshy scales leaves. At the base of the onion the root appears as a thread like structure. Having a cluster of fleshy leaves, the onions look like a tunicate bulb.

Detailed explanation-5: -Bulb. Explanation: An onion is an underground stem that is a bulb.