Bacteria (Listeni/bækˈtɪəriə/; common noun bacteria, singular bacterium) constitute a large domain of prokaryotic microorganisms. source
Bacteria (Listeni/bækˈtɪəriə/; common noun bacteria, singular bacterium) constitute a large domain of prokaryotic microorganisms.
Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. source
Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals.
Bacteria were among the first life forms to appear on Earth. source
Bacteria were among the first life forms to appear on Earth.
Bacteria are present in most of its habitats. source
Bacteria are present in most of its habitats.
Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust. source
Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust.
Bacteria live in symbiotic and parasitic relationships with plants and animals. source
Bacteria live in symbiotic and parasitic relationships with plants and animals.
Most bacteria have not been characterised, and only about half of the bacterial phyla have species that can be grown in the laboratory. source
Most bacteria have not been characterised, and only about half of the bacterial phyla have species that can be grown in the laboratory.
The study of bacteria is known as bacteriology, a branch of microbiology. source
The study of bacteria is known as bacteriology, a branch of microbiology.
There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water. source
There are typically 40 million bacterial cells in a gram of soil and a million bacterial cells in a millilitre of fresh water.
There are approximately 5×1030 bacteria on Earth,forming a biomass which exceeds that of all plants and animals. source
There are approximately 5×1030 bacteria on Earth,forming a biomass which exceeds that of all plants and animals.
Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. source
Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere.
The nutrient cycle includes the decomposition of dead bodies and bacteria are responsible for the putrefaction stage in this process. source
The nutrient cycle includes the decomposition of dead bodies and bacteria are responsible for the putrefaction stage in this process.
It was suggested that bacteria thrive in the Mariana Trench, which with a depth of up to 11 kilometres is the deepest known part of the oceans. source
It was suggested that bacteria thrive in the Mariana Trench, which with a depth of up to 11 kilometres is the deepest known part of the oceans.
Bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles. source
Bacterial cells do not contain a nucleus and rarely harbour membrane-bound organelles.
The vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system. source
The vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system.
There are approximately ten times as many bacterial cells in the human microbiota as there are human cells in the body. source
There are approximately ten times as many bacterial cells in the human microbiota as there are human cells in the body.