Biotic factors

3.1. Biotic factors Biotic factors are the relationships between living things. They vary according to the organisms involved and are classified as: Intraspecific relationships, where individuals of the…

Check. Trophic relationships in ecosystems

Draw a terrestrial food web with these living things: snake, frog, eagle, grass, butterfly, grasshopper, rabbit.

Write chemical equations. Matter and its properties

In order to write the chemical formula for a chemical reaction correctly, we have to write the formulas of the reagents, followed by an arrow and the formulas of the products. [...]

Final Autoevaluation T12 05 - Waves. Light and sound

Sound and Noise Spain is the second noisiest country in the world after Japan. Especially in the big cities, people live surrounded by noise from traffic and construction work. This situation means that…

The Esquilache Mutiny

The Esquilache Mutiny took place in Madrid in 1766, following a decree imposed by a minister of Charles III, who was of Italian origin. The decree forbade the wearing of long capes and wide-brimmed…

Final evaluation T06 07 - The age of imperialism

Explain how the colonies were organised politically and economically.

Final evaluation T06 09 - The age of imperialism

Why do many historians think that imperialism was an economic necessity in the development of capitalism?

The role of the United States

America leads the world like a colossus (…). Since Rome destroyed Carthage, no other great power has achieved as much as we have (…). This unipolar world (…) will last for at least one more…

Dossier: El órgano - La música barroca: la melodía acompañada

Dossier: El órgano La música barroca: la melodía acompañada

Speaking bank