Information: - The tyrant flycatchers (Tyrannidae) are a family of passerine birds which occur throughout North and South America. They are considered the largest family of birds, with more than 400 species. They are the most diverse avian family in every country in the Americas, except for the United States and Canada. As could be expected from a family this large, the members vary greatly in shape, patterns, size and colors. Some tyrant flycatchers superficially resemble the Old World flycatchers which they are named after but are not related to. They are members of suborder Tyranni (suboscines), which do not have the sophisticated vocal capabilities of most other songbirds. - Plumage ("feather") refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies, and may vary with age classes. Within species there can be different colour morphs. - Uromyias is a small group of small Andean, tyrant flycatchers known as tit-tyrants. They were formerly recognized based on syringial and plumage characters, including a flatter crest and a longer tail, but was included within "Anairetes" due to genetic analysis. Recent analyses suggested splitting into Uromyias again. - Serpophaga is a genus of bird found in Central and South America. The genus is in the family Tyrannidae, the tyrant flycatchers. It contains the following species: - Birds (Aves), also known as avian dinosaurs, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. They rank as the class of tetrapods with the most living species, at approximately ten thousand, with more than half of these being passerines, sometimes known as perching birds or, less accurately, as songbirds. - Mecocerculus is a genus of bird in the family Tyrannidae. - Tit - tyrants in the genus Anairetes are a group of small , mainly Andean , tyrant flycatchers . The group briefly included the genus Uromyias , which had been recognized based on syringial and plumage characters , including a flatter crest and a longer tail , but was included within Anairetes due to genetic analysis . Recent analyses suggested splitting into Uromyias again . Anairetes is believed to be most closely related to the genera Mecocerculus and Serpophaga ; however , there is no definitive evidence supporting this claim . They are fairly small birds ( 11 -- 14 cm ) that get their common name from the tit family , due to their energetic tit - like dispositions and appearance , primarily in their crests . Species in this genus live in temperate or arid scrub habitats and are mainly found in the Andes mountains . It is one of only a few genera of small flycatchers that occur at such high altitudes . Given the information above, choose from the list below the object entity that exhibits the relation 'parent taxon' with the subject 'anairetes'. Choices: - bird - mecocerculus - ostrich - serpophaga - tit - tyrannidae - uromyias
tyrannidae

Information: - Dihydrochalcone (DHC) is a chemical compound related to chalcone. - Phloretin is a dihydrochalcone, a type of natural phenols. It can be found in apple tree leaves and the Manchurian apricot. - A glucoside is a glycoside that is derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolysed by purely chemical means, or decomposed by fermentation or enzymes. - Enzymes are macromolecular biological catalysts. Enzymes accelerate, or catalyze, chemical reactions. The molecules at the beginning of the process upon which enzymes may act are called substrates and the enzyme converts these into different molecules, called products. Almost all metabolic processes in the cell need enzymes in order to occur at rates fast enough to sustain life. The set of enzymes made in a cell determines which metabolic pathways occur in that cell. The study of enzymes is called "enzymology". - In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosides. These can be activated by enzyme hydrolysis, which causes the sugar part to be broken off, making the chemical available for use. Many such plant glycosides are used as medications. In animals and humans, poisons are often bound to sugar molecules as part of their elimination from the body. - Glucose is a simple sugar with the molecular formula CHO. Glucose circulates in the blood of animals as blood sugar. It is made during photosynthesis from water and carbon dioxide, using energy from sunlight. The reverse of the photosynthesis reaction, which releases this energy, is an important source of power for cellular respiration. Glucose is stored as a polymer, in plants as starch and in animals as glycogen, for times when the organism will need it. - Phlorizin is a 2 ' - glucoside of phloretin . It belongs to the group of dihydrochalcones , a type of flavonoids . Given the information above, choose from the list below the object entity that exhibits the relation 'instance of' with the subject 'phlorizin'. Choices: - apple - chemical - chemical compound - energy - formula - glycoside - group - humans - may - molecular formula - molecule - play - process - set - store - tree - water - will
chemical compound