What are the types of organisms? What are the types of organisms

Organisms are divided into plants, animals, and microorganisms.

1. Plants. Plants are one of the main forms of life, including trees, shrubs, vines, grasses, ferns, and familiar organisms such as green algae and lichens. Plants can be divided into seed plants, algae plants, bryophytes, ferns, etc., and it is estimated that there are about 450,000 species in existence.

2. Animals. According to fossil research, the first animals to appear on Earth originated from the ocean. After a long geological period, early marine animals gradually evolved into various branches, enriching the early life forms on earth.

Prehistoric animals appeared before the advent of humans and flourished during their respective periods of activity.

3. Microorganisms.

A large group of organisms, including bacteria, viruses, fungi and some small protists, microscopic algae, etc., which are small and closely related to humans. It covers many kinds of beneficial and harmful, and is widely involved in food, medicine, industry and agriculture, environmental protection, sports and many other fields.

1.It can be divided into the following three groups: Prokaryotes: are organisms that are made up of prokaryotic cells, including cyanobacteria, bacteria, actinomycetes, spirochetes, and mycoplasma.

2.Prokaryotes are so small that they are not visible to the naked eye and must be observed under a microscope.

3.Most prokaryotes can perform aerobic respiration underwater, and they were the first single-celled animals to emerge on Earth.

4.The smallest prokaryotes are mycoplasma.

5.Eukaryotes: is a general term for single-celled organisms and multicellular organisms with a nucleus, including all animals, plants, fungi, and other organisms with complex subcellular structures encased by membranes.

6.Non-cellular organisms: It is a life without a cellular structure, and generally refers to the life form of viruses that are scientifically classified in phyloevolution.

7.Including deoxyribonucleic acid virus, ribonucleic acid virus, etc.

Classification of organisms:1. There are two types of prokaryotes and eukaryotes.

2. There are two types of autotrophs and heterotrophs.

3. There are two types of cellular organisms and non-cellular organisms.

4. There are two types of single-celled organisms and multicellular organisms.

5. There are two types of aquatic organisms and terrestrial organisms.

Taxonomic basis:Taxonomy is a fundamental method of studying living things. Biological classification is mainly based on the degree of similarity of organisms (including morphological structure and physiological function, etc.), the organism is divided into different levels such as species and genus, and the morphological structure and physiological function and other characteristics of each taxa are scientifically described, so as to clarify the kinship and evolutionary relationship between different taxa.

Classification is based on the characteristics of organisms in terms of morphological structure and physiological functions. The basic unit of classification is species. The higher the taxonomic level, the less common denominator the organisms contained; The lower the taxonomic level, the more organisms have in common.

Understanding biological diversity, and protecting biological diversity, requires the classification of organisms.

A taxonomic system is an order system that usually includes seven main levels: Boundary, Phylum, Class, Order, Family, Genus, and Species.

Biological species can be divided into plants, animals, bacteria, fungi, archaea, and viruses. The detailed taxonomic hierarchy of organisms is domain, kingdom, phylum, subphylum, general order, class, subclass, order, order, suborder, general family, family, subfamily, general genus, genus, subgenus, total species, species, and subspecies.

Organisms refer to living organisms with kinetic energy, and the most important and basic characteristics of organisms are that organisms can carry out metabolism and heredity.

In the classification of organisms, species is the smallest biological unit, and the more families and orders that organisms have, the more they have in common.

In biology and ecology, there are about 8.7 million species (1.3 million) on Earth, of which 6.5 million live on land and 2.2 million in water.

The three major groups of biomes are:

The first category is autotrophic organisms, including various green plants and chemosynthetic bacteria, called producers, and the second category is heterotrophic organisms, including herbivores and carnivores, called consumers, and the third category is heterotrophic microorganisms, such as bacteria, fungi, soil protozoa and some small invertebrates, which live by decomposing animal and plant residues, called decomposers.

Prokaryotes, animals, plants, fungi.

Organisms include the kingdom Animalia, the kingdom of plants, and the kingdom of microorganisms. Nowadays, living things are generally divided into three kingdoms, namely the animal kingdom, the plant kingdom and the microbial kingdom. The idea that organisms are divided into "three kingdoms" is accepted by many, but by scientists.

In careful research, there are very different views on how organisms are divided.

Since living beings are divided into three realms, each of them must have their own characteristics. The main one is the lack of food, and the temperature, air, humidity, etc. also directly affect the number of microorganisms to reproduce, so the total number of microorganisms is always kept at a relatively stable level.

Classification of organisms:If it is divided by boundary.

According to the two realms, it is the plant kingdom and the animal kingdom.

If we say it according to the three realms, it is the plant kingdom, the animal kingdom, and the protist kingdom.

According to the four realms, it is the plant kingdom, the animal kingdom, the protist kingdom, and the prokaryotic kingdom.

According to the Five Realms, it is the plant kingdom, the animal kingdom, the protist kingdom, the prokaryotic kingdom, and the fungal kingdom.

The Six Realms are the plant kingdom, the animal kingdom, the protist kingdom, the prokaryotic kingdom, the fungal kingdom, and the non-cellular kingdom (virus).