Some species of Hydra exist in a mutual relationship with various types of unicellular algae.

Some largely unicellular anaerobic microbes are protists, but most of the anaerobic microbes are bacteria or Archaea.

Some species are unicellular.

Some are unicellular, but others are filamentous and branching.

Some species in the Plethodontidae have a weak zone at the base of the tail and if the salamander is in danger or if the tail is grabbed by a predator, it breaks off, a process known as autotomy.

Some species complete their development inside the egg and hatch directly into small frogs.

Some species are carnivorous at the tadpole stage, eating insects, smaller tadpoles and fish.

Some members of the genera Ambystoma and Dicamptodon have larvae that never fully develop into the adult form but this varies with species and with populations.

Some species of salamander emit a quiet squeak or yelp if attacked.

Some of the species of Allium are important food plants for example onions ( Allium cepa ), chives ( A. schoenoprasum ), garlic ( A. sativum and A. scordoprasum ), and leeks ( A. porrum ).

Some endangered species in British Columbia are: Vancouver Island marmot, Spotted Owl, American White Pelican, and badgers.

Some birds, especially corvids and parrots, are among the most intelligent animal species ; a number of bird species have been observed manufacturing and using tools, and many social species exhibit cultural transmission of knowledge across generations.

Some species, particularly songbirds and parrots, are popular as pets.

Some aspects of brain structure are common to almost the entire range of animals species ; others distinguish " advanced " brains from more primitive ones, or distinguish vertebrates from invertebrates.

Some suggest Neanderthal, Homo erectus, or Homo heidelbergensis to be the creature, but no remains of any of those species have been found in the Americas.

Some species of mold produce alpha-galactosidase, an anti-oligosaccharide enzyme, which humans can take to facilitate digestion of oligosaccharides in the small intestine.

Some species, such as the Lesser Dwarf Lemur, store fat at the hind legs and the base of the tail and hibernate.

Some rare species are viviparous.

Some cosmologists have proposed that Big Bang nucleosynthesis suggests there is a fourth " sterile " species of neutrino.

Some species and genera had a very wide distribution with only minor variations.

Some botanical species are trees having similar foliage to the Lauraceae due to convergent evolution.

Some of the country's most endangered species are the Harpy eagle, the Giant anteater, the Golden toad and the Jaguar.

* Some Dracocephalum, Glechoma and Calamintha species were formerly classified in Nepeta.

* Some crustaceans, such as the coconut crab, though mainly omnivorous, will prey on turtle hatchlings, smaller crabs species, rats, and carrion

Some species form packs or live in small family groups depending on the circumstances, including the type of available food.

Some canid species have also been trapped and hunted for their fur and, especially the gray wolf and the red fox, for sport.

Some Allied officers who were acquainted with the superior numbers of the enemy, and aware of their strong defensive position, ventured to remonstrate with Marlborough about the hazards of attacking ; but the Duke was resolute – " I know the danger, yet a battle is absolutely necessary, and I rely on the bravery and discipline of the troops, which will make amends for our disadvantages ".

Some constructions, however, rely on particular regional accents for the rhymes to work.

Some psychiatrists also argue that current diagnostic standards rely on an exaggerated interpretation of neurophysiological findings and so understate the scientific importance of social-psychological variables.

Some philosophers rely on descriptive ethics and choices made and unchallenged by a society or culture to derive categories, which typically vary by context.

Some hammering methods rely entirely on gravity for acceleration on the down stroke.

Some arguments in favor of partial authenticity rely on the language used in the Testimonim, e. g. that the passage calls Jesus " a wise man " which is not laudatory enough for an interpolator, neither is the reference to " amazing deeds ".

Some lasers do not use an optical cavity, but instead rely on very high optical gain to produce significant amplified spontaneous emission ( ASE ) without needing feedback of the light back into the gain medium.

Some businesses and government organizations rely upon rugged PDAs, sometimes known as enterprise digital assistants ( EDAs ), for mobile data applications.

Some of the protactinium-related dating variations rely on the analysis of the relative concentrations for several long-living members of the uranium decay chain – uranium, thorium and protactinium, for example.

Some paints form by solvent evaporation only, but most rely on cross-linking processes.

Some civilization critics point out that modern societies rely on technology to invent and promote new technology, often resulting in a degree of pro-technology propaganda, and this backpropagation would mean that mankind hands over control to a living machine.

Some of this history, composed more than 500 years after the events, with scant written sources to rely on, may be fictitious reconstruction-nonetheless the influence of Greek ideas on governance is evident in the organisation of the Roman Republic.

Some tongue-twisters produce results which are humorous ( or humorously vulgar ) when they are mispronounced, while others simply rely on the confusion and mistakes of the speaker for their amusement value.

Some receive direct government support, while others rely on private individual or corporate donors.

Some fundamental formulations in the field of general semantics rely heavily on a valuation of extension over intension.

Some low-cost peripherals no longer contain non-volatile memory for firmware, and instead rely on the host system to transfer the device control program from a disk file or CD.

Some jurisdictions may have very detailed and complex rules of the road while others rely more on drivers ' common sense and willingness to cooperate.

Some ectoparasites, such as monogenean worms, rely on direct contact between hosts.

Some subwoofer enclosure designs rely on drivers facing to the sides or to the rear in order to achieve a degree of directionality.

* Electric motors and generators: Some electric motors rely upon a combination of an electromagnet and a permanent magnet, and, much like loudspeakers, they convert electric energy into mechanical energy.

Some pseudo-sciences such as physiognomy, phrenology and palmistry rely on superficial anatomy.

Some commentators, such as Rabbi Hayim Palaggi ( 1788 – 1869 ) argued that Jews had lost the tradition of distinguishing Amalekites from other people, and therefore the commandment of killing them could not practically be applied ("... We can rely on the maxim that in ancient times, Sennacherib confused the lineage of many nations.

Some totalitarian governments, such as the late Soviet Union or the current North Korea, rely on the mechanisms of the police state.

Some other languages rely on a fully external language to define the transformations, such as the XSLT preprocessor for XML, or its statically typed counterpart CDuce.