u
- ultraoligotrophic alpine freshwater lake
-
http://eol.org/schema/terms/ultraoligotrophicAlpineFreshwaterLake
- ultraoligotrophic freshwater lake
-
http://eol.org/schema/terms/ultraoligotrophicFreshwaterLake
- umbrella
-
http://purl.obolibrary.org/obo/ENVO_02000052
A canopy designed to protect against precipitation or sunlight.
- umbrisol
-
http://purl.obolibrary.org/obo/ENVO_00002253
Umbrisols are soils in which organic matter has accumulated within the mineral surface soil (in most cases with low base saturation) to the extent that it significantly affects the behaviour and utilization of the soil.
- unbranched
-
http://purl.obolibrary.org/obo/PATO_0000414
lacking branches
- uncertainty
-
http://semanticscience.org/resource/SIO_000769
The uncertainty value (margin of error) of a measurement is a range of values likely to enclose the true value.
- uncommon
-
http://eol.org/schema/terms/uncommon
Common species and uncommon species are designations used in ecology to describe the population status of a species. Commonness is closely related to abundance. Abundance refers to the frequency with which a species is found in controlled samples; in contrast, species are defined as common or uncommon based on their overall presence in the environment. A species may be locally abundant without being common.
https://en.wikipedia.org/wiki/Common_species
- unconfirmed holotype
-
http://eol.org/schema/terms/unconfirmedHolotype
A specimen that may be a holotype, but its type status has not yet been confirmed.
- unconfirmed lectotype
-
http://eol.org/schema/terms/unconfirmedLectotype
A specimen that may be a lectotype, but its type status has not yet been confirmed.
- unconfirmed paratype
-
http://eol.org/schema/terms/unconfirmedParatype
A specimen that may be a paratype, but its type status has not yet been confirmed.
- unconfirmed syntype
-
http://eol.org/schema/terms/unconfirmedSyntype
A specimen that may be a syntype, but its type status has not yet been confirmed.
- unconfirmed type
-
http://eol.org/schema/terms/unconfirmedType
A specimen that may be a type, but its type status has not yet been confirmed.
- undecanoic acid
-
http://purl.obolibrary.org/obo/CHEBI_32368
- underground
-
http://eol.org/schema/terms/underground
- underground lake
-
http://purl.obolibrary.org/obo/ENVO_00000058
A lake which is formed under the surface of the Earth. Such a lake may be associated with caves and aquifers and springs.
- underground river
-
http://purl.obolibrary.org/obo/ENVO_00000059
A river that is under the surface of the Earth.
- underground stream
-
http://purl.obolibrary.org/obo/ENVO_00000060
A stream that is under the surface of the Earth.
- underground water
-
http://purl.obolibrary.org/obo/ENVO_00005792
- underground water body
-
http://purl.obolibrary.org/obo/ENVO_00000061
A geographical feature associated with water that is under the surface of the earth.
- understory
-
http://purl.obolibrary.org/obo/ENVO_01000335
a layer of plant life which grows below the canopy without penetrating it.
- undescribed marine species present in museum collections
-
http://eol.org/schema/terms/UndescribedSpeciesInMuseumCollections
"marine species in this clade which are currently represented in specimen collections (estimate) (Appeltans et al. 2012. The Magnitude of Global Marine Species Diversity. Current Biology 22, 2189–2202. http://dx.doi.org/10.1016/j.cub.2012.09.036)"
- undiscovered marine morphospecies
-
http://eol.org/schema/terms/UndiscoveredMorphospecies
unsampled and undiscovered marine morphospecies in this clade (estimate) (Appeltans et al. 2012. The Magnitude of Global Marine Species Diversity. Current Biology 22, 2189–2202. http://dx.doi.org/10.1016/j.cub.2012.09.036)
- undulatory
-
https://www.wikidata.org/entity/Q7884068
motion characterized by wave-like movement patterns that act to propel an animal forward. eg: crawling in snakes, or swimming in the lamprey. Typically utilized by limbless animals
- unguligrade
-
https://www.wikidata.org/entity/Q476026
species that walk on the tips of their toes, often protected by hooves
- unicellular
-
http://purl.obolibrary.org/obo/PATO_0001994
consisting of exactly one cell
- uninervous
-
http://eol.org/schema/terms/uninervous
leaf having a central midrib with no lateral veins
- unisexual flowers
-
https://eol.org/schema/terms/unisexual_flowers
in which either the stamens or the carpels are missing, vestigial or otherwise non-functional. Each flower is either "staminate" (having only functional stamens) and thus "male", or "carpellate" (or "pistillate") (having only functional carpels) and thus "female". If separate staminate and carpellate flowers are always found on the same plant, the species is called monoecious. If separate staminate and carpellate flowers are always found on different plants, the species is called dioecious.
Beentje, Henk (2010). The Kew Plant Glossary. Richmond, Surrey: Royal Botanic Gardens, Kew. ISBN 978-1-84246-422-9.
- univoltine
-
http://eol.org/schema/terms/univoltine
completing one generation per year
- unknown
-
http://eol.org/schema/terms/unknown
This statement may be true or false; the answer to this question is unknown.
- unsegmented
-
https://eol.org/schema/terms/unsegmented
- up
-
https://www.wikidata.org/entity/Q15332375
- upland soil
-
http://purl.obolibrary.org/obo/ENVO_00005786
- upper confidence limit
-
http://purl.obolibrary.org/obo/STATO_0000314
upper confidence limit is a data item which is a largest value bounding a confidence interval
http://bioportal.bioontology.org/ontologies/STATO/
- upper cretaceous epoch
-
http://resource.geosciml.org/classifier/ics/ischart/UpperCretaceous
- upper devonian epoch
-
http://resource.geosciml.org/classifier/ics/ischart/UpperDevonian
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
- upper jurassic epoch
-
http://resource.geosciml.org/classifier/ics/ischart/UpperJurassic
- upper montane
-
http://purl.obolibrary.org/obo/ENVO_01000345
a montane condition in which an altitude range falls immediately below the tree line
- upper ordovician epoch
-
http://resource.geosciml.org/classifier/ics/ischart/UpperOrdovician
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
- upper pleistocene age
-
http://resource.geosciml.org/classifier/ics/ischart/UpperPleistocene
International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
- upper triassic epoch
-
http://resource.geosciml.org/classifier/ics/ischart/UpperTriassic
- upper-level epifaunal
-
http://eol.org/schema/terms/upperEpifaunal
Organism living on the surface of the substratum on rocks or biogenic substrates a considerable distance above the seafloor.
- upward conveyor
-
http://polytraits.lifewatchgreece.eu/terms/RW_UC
Upward conveyors are vertically oriented species that typically feed head-down at depth in the sediment. Vertically oriented head-down feeders actively select and ingest particles at the deeper sediments and egest these non-locally as faeces in the sediment surface
- upward conveyor
-
https://eol.org/schema/terms/upward_conveyor
aquatic consumers oriented head-down in sediments, where they feed at depth and transport sediment through their guts to the sediment surface.[18] Major upward-conveyor groups include burrowing polychaetes like the lugworm, Arenicola marina, and Thalassinid shrimps.
https://en.wikipedia.org/wiki/Bioturbation#Evolution
- upwelling
-
http://purl.obolibrary.org/obo/ENVO_01000005
An oceanographic feature that involves wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface, replacing the warmer, usually nutrient-deplete surface water.
- urban
-
http://purl.obolibrary.org/obo/ENVO_01000249
a dense settlement biome which has been urbanised
- uric acid
-
http://purl.obolibrary.org/obo/CHEBI_27226
An oxopurine that is the final oxidation product of purine metabolism.
- urinary system
-
http://purl.obolibrary.org/obo/NCIT_C12413
anatomical structure that consists of organs and organ subclasses responsible for certain body functions. Representative examples are the gastrointestinal system, urinary system, and hematopoietic system
- used for
-
http://eol.org/schema/terms/Uses
The uses of the organism or products derived from the organism.
