Cargando...
Recursos educativos
-
Nivel educativo
-
Competencias
-
Tipología
-
Idioma
-
Tipo de medio
-
Tipo de actividad
-
Destinatarios
-
Tipo de audiencia
-
Creador
Lo más buscado
- Cultura y lenguas clásicas
- La ciudad romana
- Género y número
- Inventos del siglo xv
- Dibujos con colores primarios
- Juegos de matemáticas quinto
- Seres inertes
- Actividad con fracciones
- Mapa de España
- Decadencia del imperio Romano
- Letras H
- Carga eléctrica para cuarto
- Canciones en inglés
- Experimentos sociales
- Actividades de lenguaje
-
The removal of cell waste
EduBook Organización
- 2180 visitas
4.1. What does excretion consist of? Cell activity produces waste products like carbon dioxide or urea. These substances are toxic for the organism if they accumulate. The function of excretion is…
-
Think about it. The removal of cell waste
EduBook Organización
- 2184 visitas
Remember what you have studied in this section and answer the questions: Why do sponges and coelenterates not need excretory organs? What is the difference between defecation and excretion? Why is more…
-
Work it out. Animal nutrition
EduBook Organización
- 2189 visitas
Remember what you have studied in this section and answer the questions: Is it possible to find a digestive system that does not use mechanical processes? And chemical processes? Explain your answer.…
-
Learn. How to find out the age of a human foetus
EduBook Organización
- 2190 visitas
The approximate age of a foetus can be determined by scanning the mother's abdomen with an ultrasound machine. This method is usually used at a clinic to check that a pregnancy is progressing well…
-
Match. Metamorphic rocks
EduBook Organización
- 2188 visitas
Match each type of metamorphic rock with the rock from which it originates: Quartzite Gneiss Marble Dolomitic marble Chalk
-
Calculate. Pressure
EduBook Organización
- 2194 visitas
Calculate the pressure exerted on the floor a box of mass 150 kg whose base has an area of 3 m2: P = Pa
-
Analyse. Learn to build and calibrate a thermometer
EduBook Organización
- 2189 visitas
To build a simple alcohol thermometer you can use a conical flask containing alcohol (mercury is toxic), and a capillary tube. Equipment A container to boil water, two beakers, ice cubes, a capillary…
-
Look. Main periods of the 18th century
EduBook Organización
- 2198 visitas
Look at the timeline. Which dynasty began to reign in Spain in the 18th century? Name the monarchs.
-
Final self-evaluation T01 07 - The 18th century: the Ancien Régime in cr...
EduBook Organización
- 2184 visitas
Match each statement with the correct subject: The subsistence crisis is a period when crops fail and prices rise while rural people suffer hunger. The Spanish enlightenment thinkers insisted on the…
-
Nationalist movements
EduBook Organización
- 1 lo usan
- 2001 visitas
The Napoleonic expansion and the Holy Alliance provoked a surge in nationalist sentiment in many European countries. In these territories, the liberal revolutions were accompanied by nationalist…