Plants are found on wet and dry land, in salt water oceans, and in fresh water rivers, lakes and streams. Three features distinguish plants from animals:

On this earth, there are a vast variety of plants, upon which virtually all other living creatures depend upon in order to survive in at least two ways.

First, plants are consumed for food. Through photosynthesis, plants convert energy from sunlight into food stored as carbohydrates. It is because animals cannot get energy directly from the sun, that they must eat plants to survive, or, in the alternative eat other animals that have eaten plants.

Second, plants provide the oxygen animals and humans need to breathe, because plants use carbon dioxide for photosynthesis and release oxygen into the atmosphere.

The primary levels of classification for every living organism are: kingdom, phylum, class, order, family, genus and species, although there may be other intermediary classifications throughout these levels of classifications.

Thus, the Kingdom of Plants is divided into smaller and smaller divisions based on several characteristics, the first division is based on (1) whether they can circulate fluids (like rainwater) through their bodies or need to absorb them from the moisture that surrounds them; (2) how they reproduce, either by spores or by seeds; and (3) their size or stature.

Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae and most plants are multicellular organisms. Historically, the plant kingdom encompassed all living things that were not animals, and for a time, included algae, fungi, archaea and bacteria.

However, now, all the current definitions of the Kingdom Plantae exclude the fungi and some algae, as well as the prokaryotes, which are now included in the Archaea Kingdom and the Bacteria Kingdoms.

Plants reproduction is characterized as either:

Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts. Their chloroplasts contain chlorophylls a and b, which gives them their green color.

By a definition from another study, green plants form the clade Viridiplantae (Latin name for green plants) and is sister to the clade Glaucophyta, which consists of the green algae.

There are a number of flowering plants that do not have chlorophyll nor use photosynthesis and the greatest biological diversity of these occurs among the Phylum Angiosperm. Some studies choose to call all of these flowering plants, parasitic plants, and in a sense, they are parasitic plants by the strict definition.

The definition of a Parasitic Plant is a plant that derives some or all of its nutritional requirement from another living plant.

Too, all parasitic plants have a specialized organ called the haustoruim, which is a modified root used by the parasite to attach and invade the vascular system of the hose plant, either the vascular portion of the roots (xylem), the vascular portion in the rest of the plant (phloem), or both. The haustoruim establishes a structural and physiological connection between the parasite and host, allowing the parasite to achieve optimal growth, reproductions and to exchange nutrients and information with its host.

These flowering plants fall into two categories:

Further, a mycheterotrophs plant is one that (instead of a haustorial root), obtains their nutrition indirectly from the host plant via a mycorrhizal fungus. This fungus attaches to the roots of a photosynthetic plant and acts as a conduit between the mycheterotrophs and the host plant, which transports nutrition between the two plants.

Some plants are parasitic and some are mycotrophic (plant that obtains nutrient through a symbiotic association with fungi). These plants do not have the ability to produce normal amounts of chlorophyll or to photosynthesize, but still have flowers, fruits, and seeds.

Of course, both the haustorial and the Mycheterotrophs plants are heterotrophs (eats other plants for energy and nutrients), however, each group does it differently.

Further, both groups have mixotrophic (combination of heterotrophic and photosynthesis feeding) as well as fully-heterotriphic (non-photosynthetic) representative species. Too, there are no true saprophytes (living organisms that live and feed on dead and decaying organisms) within the angiosperms phylum. Only fungi can directly utilize dead organic material.

Currently, the wise (university educated) men of the earth are and have been endeavoring to classify all living things into categories, so as to determine how it evolved; and the debates continue to rage on and on. However, methinks that they will never learn the truth because they eliminate the obvious, that all organisms were in fact created by God. (But never try to explain this to the any of the university educated wise men, because they will just make fun of you and the belief you have that there is a God.)

Still, the Plant Kingdom currently has over 380,000 species, (with some estimates over 400,000) and currently, all living plant species are divided into five phylums. The largest amount of plant species fall into the one phylum, which is the Angiosperm. Each of the five phyla groups are divided into even smaller groups, known as classes.

The Plant Kingdom has long been divided into four phylums, which are called: Angiosperm; Gymnosperm, Bryophyta; and Pteridophyta. However, a fifth Phylum, Thallophyta, was later created so as to have a location where the species which did not fit in the other four could be located.

To divide plants, several features are considered. The first is whether the plant is vascular (meaning that they have connective tissue which serves as ducts to convey fluids) or non-vascular. Next is whether plants are seed producing or spore producing. The third consideration is whether plants are flowering or non-flowering.

To divide plants, several features are considered. The first is whether the plant is vascular (meaning that they have connective tissue which serves as ducts to convey fluids) or non-vascular. Second is whether plants are seed producing or spore producing. The third consideration is whether plants are flowering or non-flowering.