INMET-JPablo Rodriguez
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Vídeo de clase inversa sobre la Teoría de la Evolución y la Seleccción Natural. Incluye fragmento de canción "Evolution, revolution" con música de Shakira.
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00:00:06
In reality, the herbivores can not reduce the food for certain reptiles and there are fewer plants and, logically, fewer herbivores.
00:00:54
If a group of lizards has straighter legs and can run faster, they will hunt more herbivores, eat better, reproduce more frequently and their number will increase.
00:01:29
On the contrary, slower reptiles will decrease in number when competing for food with the best adapted.
00:01:41
Charles Darwin called this process natural selection back in the 19th century.
00:01:49
But how do living beings manage to develop those characteristics that make them better?
00:01:57
Let's say that in most cases it is a matter of luck.
00:02:05
Its manual of construction and functioning instructions, that is, its DNA, changes, it suffers mutations.
00:02:09
The DNA is the substance of the cells where the instructions are written in the form of phrases called genes that form books called chromosomes.
00:02:18
Most of the mutations are bad and produce defective living beings.
00:02:30
However, sometimes favorable mutations occur that make living beings better adapted to the environment,
00:02:35
such as the increase in body size.
00:02:43
When natural selection takes place, living beings evolve and new species are made
00:02:47
better adapted to the environment, which can survive more easily.
00:02:55
- Subido por:
- Juan Pablo R.
- Licencia:
- Reconocimiento
- Visualizaciones:
- 7
- Fecha:
- 10 de julio de 2023 - 11:03
- Visibilidad:
- Clave
- Centro:
- IES CAMILO JOSÉ CELA
- Duración:
- 03′ 05″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1920x1080 píxeles
- Tamaño:
- 425.73 MBytes
