Seed Plants

The main characteristics of  seed plants :

1.     There is a organ that is the seed.

2.    Have xylem and phloem.

3.    Gametophyte depend on sporophyte . Example : The Tree is sporophyte and the flowers are gametophyte.

4.    The generative reproduction is preceded by pollination.

Xylem : Transport vessel of nutrient from root to leafs.

Phloem : Transport vessel  of nutrient from leafs to all part of plant.

Pollination : Fall of pollen to the stigma.

Gametophyte : The generation which have a half of chromosome (n).

Sporophyte : The generation which has full chromosome / (2n).

B. The difference of Gymnospermae and Angiospermae

Number	Characteristics	Gymnospermae	Angiospermae
1.	Root	-) Have cambium taproot	-)Taproot for dicotyl and fiber for monocotyl
2.	Stem	-) Has cambium	-) Has cambium for dicotyl, and not for monocotyl
3.	Leafs	-) Generally single and rigid of bone leaf.	-) Have various bone leaf
4.	Ovary	-) Do not have	-) Have
5.	Flowers	-) Do not have true flowers (form strobilus)	-) Have true flowers
6.	Ovules	-) Not covered by the leaves of fruit	-) Covered by the leaves of fruit
7.	Amount of Fertilizations	-) Single	-) Double

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