Characteristics of dicotyledon and monocotyledon.

Dicotyledon:
1. Have two cotyledons (seed leaves) in their seeds.
2. Have branching veins in their leaves.
3. Have a taproot system with a main root and smaller lateral roots.
4. Have flower parts in multiples of four or five.
5. Have secondary growth, meaning they can grow thicker over time.
6. Examples include roses, sunflowers, and oak trees.

Monocotyledon:
1. Have one cotyledon in their seeds.
2. Have parallel veins in their leaves.
3. Have a fibrous root system with many thin roots of similar size.
4. Have flower parts in multiples of three.
5. Do not have secondary growth, so they do not grow thicker over time.
6. Examples include grasses, lilies, and palms.

Dicotyledons (Dicots)

- Embryo: Has two seed leaves (cotyledons)
- Stem: Usually woody, shows secondary growth (thickening of stem and root over time)
- Leaves: Typically broad and branched with net-like venation
- Roots: Taproot system, with one prominent central root
- Vascular bundles: Arranged in a ring or scattered throughout the stem
- Flowers: Usually have four or five petals in multiples of four or five
- Pollen: Usually three-celled
- Seeds: Usually with two cotyledons and two seed coats

Monocotyledons (Monocots)

- Embryo: Has one seed leaf (cotyledon)
- Stem: Usually herbaceous (non-woody), shows minimal secondary growth
- Leaves: Typically narrow and unbranched with parallel venation
- Roots: Fibrous root system, with many small, branching roots
- Vascular bundles: Scattered throughout the stem
- Flowers: Usually have three or six petals in multiples of three
- Pollen: Usually one-celled
- Seeds: Usually with one cotyledon and one seed coat