How many types of plants exist?

There are about 375,000 species of plants, with more each year. This includes seed plants, gaps, ferns and related ferns called ferns. Approximately 297,326 plant species were identified, of which 258,650 with flowering and 15,000 gaps (liverworts, corners and mosses). All plants are photosynthetic and use carbon dioxide, water and light energy to produce oxygen and sugars. In each cell there are numerous organelles called chloroplasts that perform this task. Chloroplasts are considered to be ancient cyanobacteria that have been absorbed by larger eukaryotic cells that form plants.

Plants consist of two main groups; Green algae and land plants. Other types of eyelashes, such as red eyelashes and brown algae, were originally identified as plants, but later classified outside the Kingdom Plantae. These latter organisms are part of the same group as plants, archaplastide, but are usually not referred to as plantsJimkou ahovor's meaning. An example of well -known green algae is seaweed. The most common are vascular plants, which means that they have internal tubes for transporting water and nutrients. The minorities are species of plants called merophytes, including liver, cornea and mosses. Without vascular tubes, plants can only grow a few centimeters. Bryophytes developed for the first time during the Cambrian era, about 500 million years ago, and have remained abundant since then.

vascular plants are a more advanced type of plant. They evolved during the Silurian era, about 420 million years ago, and continued to control the Earth, both in terms of diversity and biomass. Vascular plants are a key stone that holds the entire terrestrial ecosystem, in the same way as cyanobacteria holds the ecosystem in the oceans.

FIPR FROM SERVICE INNOVATION After the initial development of vascular plants was the development of the seed. By means of seeds the plants could colonizoVat dry areas than before and survive seasonal drought. By comparison, plants that are reproduced through disputes, such as ferns, require a humid environment.

The latest plants to evolve were angiosperms or flowering plants. These only developed 125 million years ago, during chalk. The purpose of developing flowers was to get mobile animals, especially insects, involved in the process of pollen exchange and thus genetic material.