Notes, summaries, assignments, exams, and problems for Secondary education

Charles Darwin and the Discovery of Natural Selection

Charles Darwin made the groundbreaking discovery of natural selection. He observed that organisms with favorable traits are more likely to survive and reproduce, passing on those traits to future generations.

Artificial Selection: Shaping Outcomes through Human Intervention

Artificial selection involves deliberately pairing two organisms to produce desired traits in their offspring.

Gene Flow: The Transfer of Genes between Populations

Gene flow occurs when genes are transferred from one population to another through migration and mating.

Genetic Drift: Changes in Gene Frequency within a Population

Genetic drift refers to the random change in the frequency of a gene within a population. Over time,...

The Korean War

The Autonomous Communities of Spain

The Spanish Constitution of 1979 led Spain to be organized into different autonomous communities. Between 1980 and 1985, the 17 autonomous communities that exist today were established. In 1995, the statutes of autonomous cities were approved for the two Spanish cities in North Africa: Ceuta and Melilla.

Spain's Provincial Organization

Spain has 50 provinces belonging to the different autonomous communities according to their geography, cultural characteristics, and common history. There are also the autonomous cities of Ceuta and Melilla.

For historical reasons, some of these provinces are not located within the autonomous communities they belong to. For example, Condado de Treviño belongs to Burgos, but it...

Factors Leading to the 1905 Russian Revolution

• The Russo-Japanese War (1904-1905)

  The war for control of Manchuria was deeply unpopular in Russia. New taxes were imposed to finance the conflict, and Russia's defeat led to increased public hostility towards Tsar Nicholas II.

• The Emergence of Political Parties

  Despite being forbidden, various political parties emerged, all opposed to the Tsar's autocratic rule. This burgeoning opposition signaled the growing desire for political reform.

• Bloody Sunday and the 1905 Revolution

  In January 1905, industrial workers in St. Petersburg marched peacefully on the Winter Palace to petition the Tsar for improved working conditions and political reforms. The Tsar's troops fired upon the unarmed protesters, an event

Unit Test 3 Level 1

Vocabulary

1 Possible answers:

• money
• like
• wear
• upset
• crowded
• wrong

2 c, d, a, f, g, e, b

3 prestigious, puts on, huge hit, went wild, lucky break, review, rehearse, stand out

Grammar

4 When was the job offered to her? When was she offered the job?

More money should have been given to them. They should have been given more money.

Free food is provided for the volunteers. The volunteers are provided free food.

The truth may never be told (to us). We may never be told the truth.

5 can I have / get them shortened, had / got it made, am having / getting / am going to have / going to get it repaired, must have / get them tested

6 can be heard, have been working / have worked, has been known, is / are held, are expected, are given / will be given,

19th Century Spanish Politics

The Reign of Fernando VII (1814-1833)

Absolutist Phase (1814-1820)

Fernando VII dismissed the Cortes, abolished the 1812 Constitution, and re-established absolute monarchy.

Liberal Phase (1820-1823)

The Riego and Quiroga military coup forced the king to reinstate the 1812 Constitution and suppressed freedoms.

Ominous Decade (1823-1833)

Aided by the French army (the "100,000 Sons of Saint Louis"), Fernando VII defeated the liberals and reinstated absolutism.

The Reign of Isabel II (1833-1868)

A liberal constitutional monarchy was established with shared sovereignty, support from liberal political parties, constitutions, and military participation.

The Regency Period

Regencies of María Cristina Bourbon and General Espartero....

Past and Current Demographic Models

• The Preindustrial Model

  This model has high birth and death rates because the population is weakened by disease, epidemics, and famine.

• The Modern or Demographic Transition Model

  This model originated in the Industrial Revolution and spread worldwide during the 19th century.

  1. The first phase has strong population growth as a result of natural increase. Birth rates are high, and death rates fall rapidly.

  2. In the intermediate phase, natural increase slows down. Death rates remain low, but birth rates begin to fall.

  3. In the final phase, the population stagnates, or there is very slow growth. Both birth and death rates are very low, and the tendency is toward zero growth.

The Territorial Organization of Spain

Main Institutions

Nomenclature

Nomenclature: Binary ionic compounds involves combining the names of the compound’s positive and negative ions. The name of the cation is given first, followed by the name of the anion.
Binary compounds: Compounds composed of two elements.

Systems

Stock: uses a Roman numeral to indicate an Ion's charge.

Systematic: naming molecular compounds based on the use of prefixes.

Traditional: the latin names of chemical elements.

Types of Inorganics

Binary Ions: monatomic+monatomic

Ternary Ions: monatomic + polyatomic

Binary Acids: H + monatomic ( Hydro- & -ic acid )

Ternary Oxyacid: H +polyatomic ( -ate, -ide → -ic acid) ( -ite → -ous acid)

Business Structures: A Comprehensive Guide

Sole Trader

Advantages:

• Full control over profits
• Fast decision-making
• Simple setup process
• Easy bookkeeping

Disadvantages:

• Unlimited personal liability
• Limited access to credit
• Reliance on personal funds

General Partnership

Advantages:

• Shared profits and responsibilities
• Collaborative decision-making
• Increased access to capital and credit

Disadvantages:

• Unlimited personal liability for all partners
• Potential for disagreements and conflicts

Limited Partnership

Comprises General Partners and Limited Partners.

General Partner:

• Shares profits and makes decisions
• Has unlimited liability

Limited Partner:

• Shares profits but has limited decision-making power
• Liability limited to capital contribution

Private Limited Company

Advantages:

Telephone Means and Equipment

Fixed individual devices (copper networks have been replaced by optical fiber networks)

Private branch exchanges (PBX): it connects calls between two destinations or ends

Function: call transfers among extensions, caller ID…

Types: IP PBXs call centers, they manage just phone calls contact centres, they not only manage phone calls but emails, SMS, online messages, faxes, etc.

Mobile devices: PDA, Smartphone

Services: Internet, e-mail, videoconference, digital camera, audio an Video quality player, an agenda, GPS, own, Operating system

Additional services offered by the telephone equipment

Common features

A.Fixed telephony: -Notice of charge(aviso de cargo) you receive info on the cost of a call Call forwarding(desvio