Test
10.- Biodiversity flourishes in Phanerozoic eon
Preguntas del test (7)
1In multicellular organisms, how can they get variation of DNA?
- AWith a high rate of mutations
- BWith sexual reproduction
- COnly with recombination
2Why did the ozone layer allow life on land?
- AIt protected from U.V radiation
- BIt protected from very high oxygen concentration
- CIt protected from high temperatures
3List the 3 eras that make up the Phanerozoic Eon
- APaleozoic, Mesozoic and Phanerozoic
- BPaleozoic, Mesozoic and Cenoloic
- CPaleozoic, Mesozoic and Cenozoic
4What was the Cambrian Explosion?
- AA period of high rate of volcanic activity
- BAn great increasing of biodiversity
- CThe killing of the most of microorganisms
5Where did the meteorite that wiped out dinosaurs fall?
- AIn the Gobi desert
- BIn the middle of the Atlantic Ocean
- CIn the Yucatán Peninsula
6Which one of this two appeared before, flowers or grass?
- AFlowers and then grass
- BGrass and then flowers
- CBoth of them at the same time
7How old is our specie?
- A20000 years ago
- B200000 years ago
- C2000000 years ago
Información
- Descripción
- https://www.khanacademy.org/science/cosmology-and-astronomy/life-earth-universe/history-life-earth-tutorial/v/biodiversity-flourishes-in-phanerozoic-eon
- Autor
- Usuario eliminado
- Idioma
- English
- Visitas
- 17
- Historial
- Creado el 6 sep 2016 · actualizado el 7 sep 2016
- Etiquetas
- Valoración
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