Recursos educativos species página 19

Mostrando resultados de 196

Fossils
EduBook Organización
2579 visitas
Fossils are the remains or signs of activity, such as excrement and footprints, of organisms that lived in the past. These remains or signs have been preserved in rocks. Fossils help us to know which…
Ver más
Temperature and insect growth
EduBook Organización
2500 visitas
The body temperature of an insect varies according to the temperature of its surroundings. This is why insects grow more quickly in summer and more slowly in autumn and winter. Each species has its own…
Ver más
Helping the world by preserving biodiversity
EducaMadrid Organización
6652 visitas
Helping the world by preserving biodiversity Short documentary on biodiversity in the Democratic Republic of Congo and surrounding regions -- here, you'll meet the forest rangers of the Virunga national…
Ver más
Summaries - Animals
EduBook Organización
2438 visitas
1. Vertebrates Vertebrates are the group which contains the human species. They have an internal skeleton, made of bones. The name comes from the vertebrae, which make up the spine (backbone), which…
Ver más
Protecting the environment - The natural environment
EduBook Organización
1 lo usan

2169 visitas
There are many reasons why we should protect the environment. We should protect the habitat of endangered species, but we should also protect the environment because our future depends on it.…
Ver más
Pollination, fertilisation and the formation of seeds
EduBook Organización
2376 visitas
Pollination Sexual reproduction in plants occurs when a spermatozoid meets an ovule. For this to happen, the pollen grains need to travel from the stamens to the pistil. This process of transferring…
Ver más
Learn. The life cycles of animals - Animal reproduction
EduBook Organización
2276 visitas
The term life cycle refers to all the phases that take place throughout the life of a species. If development is direct, the juvenile forms look like the adults. If it is indirect, they undergo…
Ver más
Humanism
EduBook Organización
2244 visitas
1.1 A new way of thinking Humanism was a cultural movement that began in Italy in the 15th century. Its main characteristics were: A belief in the importance of the human being as the only species with…
Ver más
The extinction of the dinosaurs
EduBook Organización
2059 visitas
In 1980, American scientists proposed that the cause of the extinction of the dinosaurs, which occurred about 65 million years ago, was the result of a meteorite hitting Earth. According to this…
Ver más
Geological Time (Part 1) - Geological Time (Part 1)
EduBook Organización
1163 visitas
Life on Earth originated about 2 billion years ago, but the earliest good fossils come from the Cambrian period, which began about 570 million years ago. The Cambrian Period The climate at the beginning…
Ver más