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Definition also called as kingdom Metaphyta contains about 300,000 different
species of plants includes all types of eukaryotic,
multicellular, photosynthetic plants found in this biosphere.
CharacteristicsMost of the plants are eukaryotic and
chlorophyll containing organisms.Cell walls of plant cells are comprised of
cellulose.They have an ability to grow by cell
division. In life cycle of plant cells, the
interchanges occur from the embryos and are supported by other tissues and self produce.
Characteristics Plants have both organs and organ systems. They obtain their energy from sun through
photosynthesis. Plants reproduce both by sexual and
asexual. Plants develop a self defense mechanism to
protect them from being destroyed by animals, fungi and other plants
Organisms within Kingdom Plantae are multicellular, eukaryotic and autotrophic
They lack motility.
Classification
Based on their classification, plants are divided into the four main groups. These classifications was based onThe presence of vascular tissue.The absence of vascular tissue.The presence of seeds.The absence of seeds.
BryophytaThey are non-vascular land plantsThese plants are small, grow close to the
ground and include mosses and liverworts
The reproduction process is carried in their spores.
Depend on water for reproductionmale gametes , produced by
reproductive structures called antheridia
Pteridophytae
They are seedless vascular plantsThey are involved in
transportation of fluids.The reproduction process is
carried by spores.
Angiospermsare flowering plantsreproduction process is carried by
Angiosperm develop their seeds within an ovaryAngiosperms in the class Dicotyledoneae
grows into two seed-leaves (cotyledons).An angiosperms leaf consists of a single,
branched, and main veinThey also carry out a process called
double fertilization
Gymnosperms are non-flowering plants with
undeveloped seedsMonocot begins with a single
seed-leaf. The main veins of their leaves are usually parallel and unbranched.
Monocot plays an important role in providing us with our primary sources of nutrition