Which of the following plants has a monocot stem structure?

✅Explanation:
Monocot plants have stems characterized by scattered vascular bundles, no distinct cortex and pith, and typically no secondary growth. Among the given options, maize is a monocot plant, so its stem exhibits these characteristics.

📌📌Other Options:
-(b) Sunflower: Sunflower belongs to the dicot group. Dicot stems have a well-defined ring-like arrangement of vascular bundles surrounding a central pith.
-(c) Cucurbita (Gourd): Cucurbita (pumpkin) is also a dicot. It has vascular bundles in a ring, a defined cortex and pith, and secondary growth.
-(d) Mustard: Mustard is a dicot with the typical stem structure of vascular bundles in a ring and distinct cortex and pith.
Important Points
-Corn is a type of grass. Corn is monocotyledonous, meaning that corn only has one cotyledon.
-Cotyledons become the first true leaves of the plant.
-The cotyledons are stored food that the young plant will use while it is growing.

🛑Aditional Information:
-Monocotyledons are flowering plants or angiosperms bearing seeds with a single cotyledon or embryonic leaf.
-Monocot leaves have stomata on both upper and lower surfaces and thus are termed amphistomatous.
-Examples: Bamboos, bananas, asparagus, ginger, tulips, lilies, palms, etc.
-Dicotyledons are flowering plants or angiosperms bearing seeds with two cotyledons or embryonic leaves.
-Examples: Roses, oak trees, Bengal gram, daisies, Groundnuts, peas, beans, cactus, etc.