The theories of evolution
Fixism: This theory is a belief that holds that existing species have remained essentially unchanged since creation. The species would be, therefore, immutable as they were created. The fossil remains of animals would be killed in the Biblical floods or the vagaries of nature
creationism: theory primarily Christian, but also occurs in other religions, which holds that the universe as we know it was created by God. The creation of the universe has an extremely close date, about six thousand years, giving even the date and time of occurrence.
evolutionist theories: species have been transformed and continue to be transformed throughout the history of life. The origin of the different species is caused by the progressive... Continue reading "Fixism wiki" »
Francesco Redi: believed that maggots developed from eggs laid by flies. To test his hypothesis, he set out meat in a variety of flasks, some open to the air, some sealed completely, and others covered with gauze. As he had expected, maggots appeared only in the open flasks in which the flies could reach the meat and lay their eggs.
John Needham: He boiled chicken broth, put it into a flask, sealed it, and waited - sure enough, microorganisms grew. Needham claimed victory for spontaneous generation.
Lazzaro Spallanzani: he placed the chicken broth in a flask, sealed the flask, drew off the air to create a partial vacuum, then boiled the broth. No microorganisms grew.
Louis Pasteur: He boiled meat broth in a flask, heated... Continue reading "What is the active ingredient in spontaneous generation" »
Islam: a monotheistic religion whose only God is called Allah.
Muslims: the believers in Allah.
Caliph: the main political, military and religious authority of Muslims.
Caliphate: the territories ruled by the caliph.
Emir: a Muslim ruler (governor) under the authority of the caliph.
Emirate: the territories ruled by an emir.
Arab: a person from Arabian; they became the highest social group among the Muslims.
Arabic: the language spoken by the Arabs.
Berbers: tribes from the Sahara desert; they were warriors.
Moorish: Muslims from the north of Africa.
1º INVASION, CONQUEST AND DEPENDENT EMIRATE (FIRST HALF OF 8TH CENTURY)
At the beginning of 8th century, there was a Civil War in the Visigoth Kingdom, between Roderik, the peasant King and Witiza,... Continue reading "Vocabulary" »
Guadalete: it was a battle fought in 711; the Muslim troops defeated the Visigoth.
Alfonso I "the Battler": (12th) he was a King of Aragon; he conquered Zaragoza and occupied the Ebro valley.
Sancho III "the Great": (11th) King of Navarre; his Kingdom included the cpunty of Castile and the counties of Aragon; after his death, Castile and Aragon became independent kingdoms.
La Mesta: it was an association of sheep breeders; they had privileges: the sheep cpuld graze on the peasant's land; the association was very powerful because the wool gave a lot of money.
Parias: were taxes paid by the Taifa Kingdoms to the Castilian Kings; these taxes started around the 12th century when the Muslim became weaker than the Christians.
Covadonga: this battle took... Continue reading "Castile christian kingdom" »
2º INDEPENDENT EMIRATE AND CALIPHATE OF CORDOBA (MIDDLE OF 8TH CENTURY TO MIDDLE OF 11TH CENTURY)
The Ummayad family was assassinated in Damascu; but one of its members, Abd al Rahman escaped alive and came to the Iberian peninsula.
By the middle of 8th century, Abd al Rahman I took the power and became an independent emir: he held the political and military power, but he recognised the religious authority of the caliph.
At the beginning of the 10th century, Abd al Rahman III became caliph: the political and religious leader. Cordoba was the capital of the Caliphate. The 10th and 11th centuries were the most brilliant period of Al Andalus. During this period the Christian Kingdoms of the north (Leon, Castile, Navarre, Araon) paid taxes to the... Continue reading "Vocabulary" »
She won 3 consecutive years the television contest buscando artista infantil.-Winning this contest was very important for her, because Sony Music Colombia proposed her a contract to record her fist music discHer first music disc was called magia, in this disc she recorded some songs composed by her when she was only 8 years old. After recording this disc, she was selected to participate in the contest called OT, but she couldnt participate because she was younger than 16.After
ATOMIC MODELS: Dalton model: Each element is composed of indivisible particles called atoms. -In an element, all the atoms are identical. Atoms of difference elements are all different. -When atoms of more than one element convine , they form molecules. Compounds are made of molecules. -In a chemical reaction, atoms are not created, destroyed, or changed into other types of atoms.Thomson model: Thomson based these model in his work with cathode rais. In this model an atom consist of a (positively charged) jellylike matter with negative electrons scathered throughout it. 1-Electrization is the possibility of taking electrons from one atom to others. 2-Existence of ions: -cation +: atom with a lack of electrons -anion-: atom with an excess of... Continue reading "As2 covalent" »