Alder is particularly noted for its important symbiotic relationship with Frankia alni, an actinomycete, filamentous, nitrogen-fixing bacterium.

Coyotes will sometimes form a symbiotic relationship with American badgers.

Mid-sized plants such as Ceonothus fix nitrogen, while others cannot, which, together with the need for exposure to the sun, creates a symbiotic relationship of the entire community with infrequent fires.

Termites and protists have a symbiotic relationship that allows the termites to digest the cellulose in their diet via the protists.

These cells and the bacteria trapped inside them entered a symbiotic relationship, a close association between different types of organisms over an extended time.

Paramecium bursaria, a species of ciliate, has a mutualistic symbiotic relationship with green alga called Zoochlorella.

Many plants bearing edible fruits, in particular, have propagated with the movements of humans and animals in a symbiotic relationship as a means for seed dispersal and nutrition, respectively ; in fact, humans and many animals have become dependent on fruits as a source of food.

The protein content of peroxisomes varies across species, but the presence of proteins common to many species has been used to suggest an endosymbiotic origin ; that is, peroxisomes evolved from bacteria that invaded larger cells as parasites, and very gradually evolved a symbiotic relationship.

Eventually, no later than a billion years ago, one of these protists formed a symbiotic relationship with a cyanobacterium, producing the ancestor of many plants and algae.

Initial attempts to cultivate vanilla outside Mexico and Central America proved futile because of the symbiotic relationship between the vanilla orchid and its natural pollinator, the local species of Melipona bee.

The college and the fraternity system have created a somewhat symbiotic relationship that differs from most other colleges and universities.

Gutierrez clarified his position by advocating a circular relationship between orthodoxy and orthopraxis seeing the two as having a symbiotic relationship.

Herodotus claimed Nile crocodiles had a symbiotic relationship with certain birds, such as the Egyptian plover, which enter the crocodile's mouth and pick leeches feeding on the crocodile's blood ; with no evidence of this interaction actually occurring in any crocodile species, it is most likely mythical or allegorical fiction.

The domestication of the dog has led to a symbiotic relationship in which the dog has lost its evolutionary independence from humans in exchange for support.

Endosymbiosis is any symbiotic relationship in which one symbiont lives within the tissues of the other, either in the intracellular space or extracellularly.

Ectosymbiosis, also referred to as exosymbiosis, is any symbiotic relationship in which the symbiont lives on the body surface of the host, including the inner surface of the digestive tract or the ducts of exocrine glands.

This symbiotic relationship enhances the bacterium's ability to survive in an aquatic environment, as the exoskeleton provides the bacterium with carbon and nitrogen.

* Reciprocal altruism, a form of symbiotic relationship in evolutionary biology

Protecting and feeding the animals were a big part of the symbiotic relationship between the animals and the herders.

They are much like parasites in their close symbiotic relationship with their host or hosts.

This may be explained by possibly a very close symbiotic relationship between two types of prokaryotes which eventually led to gene exchange and engulfing of the mitochondria precursors through partial fusion or engulfing by the host bacteria.

The legume, acting as a host, and rhizobia, acting as a provider of usable nitrate, form a symbiotic relationship.

Ecologists might investigate the relationship between a population of organisms and some physical characteristic of their environment, such as concentration of a chemical ; or they might investigate the interaction between two populations of different organisms through some symbiotic or competitive relationship.

Xerces probably associated with ants in its larval stages as part of a symbiotic relationship.

It had ceased to be a symbiotic songwriting relationship, probably after the first record.

** Gomtuu, nicknamed " Tin Man ", was the presumed last member of a race of bioships which existed with a symbiotic ( and probably telepathic ) crew.

Some species ( e. g., Aulotrachichthys latus ) are reported to be bioluminescent, probably via symbiotic bacteria as is found in other beryciform fish.

Different strains of Epulopiscium have been isolated in most surgeonfish species around the world, and scientists have been unable to culture Epulopiscium outside of its natural habitat, meaning that the relationship between the two is probably mutually beneficial and symbiotic.

While the productivity of domesticated animal-breeding greatly exceeded that of the settled agricultural societies, the pastoral economy also needed supplemental agricultural produce, and stable nomadic confederations developed either symbiotic or forced alliances with sedentary peoples – in exchange for animal produce and military protection.

Eventually a symbiotic relationship developed between people and these proto-dogs.

Discovery of these fossils suggest that fungi developed symbiotic partnerships with photoautotrophs long before the evolution of vascular plants.

Accordingly, these animals have developed a symbiotic relationship with a wide range of microbes, which largely reside in the reticulorumen, and which are able to synthesize the requisite enzymes.

It is interesting to note that the development of this role, the professionalization of emergency medical services, the profession of paramedic, and the medical specialty of emergency medicine, have all developed in a symbiotic relationship since they were first created.

However some animal species have developed symbiotic relationships with cellulase producing bacteria ( see termites and metamonads.

The major proposed alternative mechanistic explanation is that the developing immune system must receive stimuli ( from infectious agents, symbiotic bacteria, or parasites ) in order to adequately develop regulatory T cells, or it will be more susceptible to autoimmune diseases and allergic diseases, because of insufficiently repressed T < sub > h </ sub > 1 and T < sub > h </ sub > 2 responses, respectively.

A symbiotic relationship may exist with 1.

Fungi communicate with their own and related species as well as with nonfungal organisms in a great variety of symbiotic interactions, especially with bacteria, unicellular eukaryotes, plants and insects through semiochemicals of biotic origin.

While it has skin and blood ( cellular organic systems ), these serve mainly as a disguise and are not symbiotic with the machine components, a trait of true cyborgs.

They consume many different kinds of fungi, including those involved in symbiotic mycorrhizal associations with trees, and are an important vector for dispersal of the spores of subterranean sporocarps ( truffles ) which have co-evolved with these and other mycophagous mammals and thus lost the ability to disperse their spores through the air.

Like other nitrogen-fixing bacteria, they can either be free-living or have symbiotic relationships with plants.

Certain other genera of symbiotic amoebae, such as Endamoeba, might prove to be synonyms of Entamoeba but this is still unclear.

The argument is that these symbiotic organisms, being unable to survive apart from each other and their climate and local conditions, form an organism in their own right, under a wider conception of the term organism than is conventionally used.

Animals such as cows ( ruminants ) are able to digest cellulose because of symbiotic bacteria that produce cellulases.

New populations migrated in with the end of the arid period in the beginning of the 1st millennia BCE, repopulating abandoned areas by inflows from the west and from the east, creating symbiotic societies that started forming in the 7th century BCE.

In a similar manner, host cells with symbiotic bacteria capable of photosynthesis would have had an advantage.

Coral reefs also support a huge community of life, including the corals themselves, their symbiotic zooxanthellae, tropical fish and many other organisms.

They evolved from symbiotic bacteria and retain a remnant genome.

Chloroplasts produce energy from light by photosynthesis, and were also originally symbiotic bacteria.

One way this can occur is in the nodules in the roots of legumes that contain symbiotic bacteria of the genera Rhizobium, Mesorhizobium, Sinorhizobium, Bradyrhizobium, and Azorhizobium.

In Secret Wars, Spider-Man's symbiotic black costume made its first appearance.

They contain symbiotic bacteria called Rhizobia within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants.

* Actinorhizal plants such as alder and bayberry, can also form nitrogen-fixing nodules, thanks to a symbiotic association with Frankia bacteria.