Laboratório de Tecnologia Educacional BIBLIOTECA DIGITAL               DE CIÊNCIAS

19 cm. The body is brown, darker in the back and ferruginous in the tail. The ventral part is light brown. Distribution: Northeast, Mideast to South of Brazil, also in Argentina, Paraguay, Uruguay and Bolivia. Has been spreading its distribution along with deforestation. Habitat: Open landscapes, fields, cerrado, lawns and gardens. Diet: Mainly arthropods, sometimes seeds. Reproduction: The couple builds the nest with mud, manure and straw that they carry with their beaks and model with their feet. The nest is usually built on tall trees. Each year a new nest is built, sometimes over the previous ones (up to 11 nests one above the other). The nest has two divisions and the eggs...

Physical appearance: 26 cm. The upper parts are green, somewhat yellow, barred in black. The inferior parts are buffy or white, also barred. The tail and the top of the head are black. The male has a red spot below the eye while in the female this spot is black. Distribution: From Eastern Amazon to Uruguay and Argentina. Habitat: Forest borders, gallery and secondary forests, woods and parks in cities. Diet: Feeds on ants and insect larva, mainly beetles. Also eats fruits. Reproduction: After courtship the couple builds a nest inside an old tree, sometimes palm trees and others. The nest is generally downwards, avoiding the water when it rains. Two to four eggs are laid and the ...

16cm. Identification: The male is practically unmistakably recognized for the fully barred body and a black crest in the head. The female is ferruginous and has a crest and is barred in the head. It is currently the only antshrike which lives in really urban and disturbed areas. It is worth reminding that this bird has only recently conquered the urban environment. In the early 80s the first records of this antshrike in large cities were so unexpected that they yielded notes in scientific papers. Like other antshrikes it lives in couples, leaping and flying from branch to branch, usually through the short trees’ canopy in search for the small arthropods it feeds on. In the breeding se...

23cm. The beak is dark, the wings ferruginous and the throat from white to light brown with faint streaks. The inferior parts are pale, sometimes white. Distribution: From Venezuela to Argentina and Paraguay. Mideast and South of Brazil. Habitat: Secondary forests, woods, gallery forests and cities, provided there are enough trees. Diet: Feeds on fruits, seeds, arthropods and earthworms. Reproduction: The female builds the nest with sticks and mud. It is usually placed in a palm tree or on walls. The male helps feeding the brood (generally three). Natural history: The name “sabiá� in Portuguese comes from Tupi (an indian language) and means “the one who prays� and i...

12,5 cm. The general color is green, but the male has a bright blue area in the wings and lower back. The female does not have this blue area and the belly is somewhat yellow. There may be mutations producing all yellow or blue individuals. The plumage of the immature individuals is not as bright as the adult’s. Distribution: Tropical South America. Habitat: Forest borders, gallery forests, parks, gardens and open areas. Diet: Feeds on fruits, seeds, buds and flowers. Reproduction: It is monogamous. The couple stays together for the rest of their lives. The nest is built inside a hole in a tree that may be an abandoned nest of hornero (Furnarius rufus) or an artificial nest box...

44 cm. The tail is long and there is a topknot. The ventral region is white. The wings are dark brown with black and white streaks. Distribution: From the state of Amapá to Uruguay. Habitat: Open fields, cerrado and caating, also in landscapes modified by man. Diet: Feeds on arthropods and small vertebrates. Reproduction: The nest may be individual or collective. It is built about 5m from the ground. The female lays up to 7 eggs, but there may be more than 20 eggs in collective nests. In the collective nests there is great competition for food among the hatchlings and few them survive. Natural history: When perched it waves its tail, swinging the body in a way that some peo...

18,5 cm. The upper parts are greenish brown, the throat is white and the belly yellow. The tip of the tail is buffy. Male and female are similar. Distribution: From Venezuela to Argentina. Mideastern Brazil. Migrates seasonaly in southern Brazil. Habitat: Open fields, grasslands, grazing lands and parks in urban areas. Diet: Catches insects on the ground and sometimes in trees. Follows cattle to feed on insects displaced by its movement. Reproduction: Builds a nest made of branches about 4m from the ground. May use nests abandoned by the hornero (Furnarius rufus). The white eggs are incubated by the couple. Natural history: When on the ground runs for some meters then stops t...

10 cm. It is very small, smaller than a sparrow. The feet are relatively big. The back and wings are brown and the ventral part white barred in black. The forehead of the male is red, while the female’s is black with white dots. In the immature the head is all brown. Can be told apart from the White-Barred Piculet ( Picumnus cirratus ) for having an ochraceous region around the neck and for being darker, mainly on the upper parts. Distribution: Southeastern Brazil and spread southwards up to Argentina. Habitat: Forest edges, gallery and secondary forests, woods, parks and gardens in big cities. Diet: Feeds mainly on ants larvae and pupae, but also on other insects. Reproduction...

36 cm. The legs and the beak are yellow. The tail is short and the wings are broad, with a somewhat rectangular shape when flying. The chest is light brown streaked in different colors and the upper parts are in shades of gray. The immature is brown and striated. The female is slightly larger than the male. Distribution: From Mexico to Argentina. Habitat: Inhabits cerrado, gallery and secondary forests, fields, farms and cities. Diet: Big insects, amphibians, small lizards , mammals and birds. Sometimes hunts perched bats. May follow groups of coatis or monkeys, catching animals displaced by their movements. Reproduction: The nest is a platform built on the top of tall trees....

There are three other very similar species from the same genus in Brazil. The females and imature individuals are nearly impossible to tell apart, as they are light brown with some darker streaks. The Saffron Finch can be distinguished from the other species for the saffron color, mostly in the breeding season. The Orange-fronted Yellow Finch ( S. columbiana) is smaller than the Saffron Finch, the Stripe-tailed Yellow Finch (S. citrina) has greenish patches on the upper parts and the Grassland Yellow Finch (S. luteola) has brownish spots even in the head. One of the countryside’s most famous birds, the Saffron Finch’s song is unique for its beaty and complexity. Unfortunately its song...

14 cm. The legs, beak and the neck are short. The throat is red, contrasting with the fuliginous sides of the head, the back and the chest that is lighter. The belly is pale yellow. The last feather of the male’s wing is rough. Distribution: From Panama to Argentina. Migrates in the south. Habitat: Open landscapes and cities, generally near the water. Diet: Feeds on insects it catches when flying. Reproduction: Builds a nest digging holes in slopes, sometimes in colonies. Lays three to six white eggs. The couple sleeps together in the nest, but only the female incubates. The couple takes turns to feed the brood. When the offspring leave the nest they remain nearby for som...

15 cm. The male is dark grey with the top of the head black. There are white spots in the tip of the tail’s feathers and in the wings, in a pattern that is similar to other antshrikes. The female is brown. Distribution: From Peru and Bolivia to Uruguay. Absent in most of the Amazon. Habitat: Mostly in Forest borders, gallery and secondary forests. Diet: Arthropods. Beats the wings to shake the foliage, catching the insects that are scared. Reproduction: The male offers the female some food before mating. The couple builds a nest with stems and moss. The female lays three white eggs with red dots. Generally the male incubates during the day and the female in the night. The par...

12 cm. Small, the legs, beak and neck are short. The back is blue and the belly white. Male and female are similar. The immature individuals are brown in the upper parts and buffy in the inferior parts. Distribution: From Costa Rica to Southern Brazil. In the Amazon region it is only seen during seasonal migrations. Habitat: Farms, villlages, cities and open areas in general. Uses rocky places and roofs to rest. Diet: Feeds on flying insects. Reproduction: The nest is similar to the one of Progne chalibea. The white eggs (2 to 6) are incubated by the couple. Male and female share the task of feeding the brood. Natural history: The southern populations migrate northwards after br...

Este trabalho abrange uma breve historico da BioQuímica em seguida a organização, padrão e diferenciação celular, água, ácido e base, tampões, diferenças entre °GL e INPM, sais, processos, micromoléculas e macromoléculas. O professor reponsável pela disciplina é Huita do Couto Matozo que desde 2006 leciona no curso de Técnico em Química da Escola Municipal Governador Israel Pinheiro de João Monlevade MG.

Este trabalho foi desenvolvido visando o aprimoramento da química biologica através de informações sobre temas bioquímicos para aguçar a curiosidade e leitores através de prática de fácil execução. O professor responsável pela disciplina é Huita do Couto matozo que leciona na Escola Municipal Governador Israel Pinheiro de João Monlevade MG.

The Cell is a 3D scale model of a cell. It presents a generic model of animal cell with organelles descriptions. The size of the cell is related with the size of the organelles. A scale bar can also be shown by clicking the appropriate button.