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3107589
14.- Natural Selection
Descripción
https://www.khanacademy.org/science/biology/crash-course-bio-ecology/crash-course-biology-science/v/crash-course-biology-113
Sin etiquetas
cultura científica 1º bach 1ºtrimestre
3.- evolution
básica media
Test por
PEDRO ALVAREZ JIMENEZ
, actualizado hace más de 1 año
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Creado por
PEDRO ALVAREZ JIMENEZ
hace más de 9 años
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Resumen del Recurso
Pregunta 1
Pregunta
How the Industrial Revolution changed the proportion of colors in peppered moth?
Image:
bb9e99fd-0fee-419d-9d89-1cb3850554fc (image/jpg)
Respuesta
By changing the color of trunks
By changing the color of moths
Contaminating the environment
Pregunta 2
Pregunta
What is genetic drift?
Image:
0e6c7906-0c7d-4394-87ce-7ff1f0b2e2b2 (image/jpg)
Respuesta
Guided changes in allele frequency
Random changes in allele frequency
Random changes in gene proportion
Pregunta 3
Pregunta
Why the Darwin´s study of beak finches shape was so important?
Image:
42e411ee-6ef2-4942-bbcf-b09a91bb3d4a (image/jpg)
Respuesta
It was the first study of Darwin
The study showed how finches had evolved
It was an example of how finches had adapted to different environment
Pregunta 4
Pregunta
What are the 4 main ideas of Darwin Natural Selection Theory?
Image:
5f389a68-6cca-4d3a-b3cd-735964f3ff3e.gif (image/gif)
Respuesta
Individual variation ,heritable variations, adapted descendants and competition for resources
Individual variation, heritable variations, adapted descendants and reproduction
Individual variation, heritable variations, too many descendants and natural selection
Pregunta 5
Pregunta
Can you explain the concept of “the struggle for existence”?
Image:
a86b6f60-5f07-4518-9a71-679c34697bcb (image/jpg)
Respuesta
Competition among living things for getting food
Competition for resources needed to live
Competition for reproduction and ensure the survival of the specie
Pregunta 6
Pregunta
According to what Darwin said, is the following sentence true? “Natural selection favors the strongest ones”
Image:
a85272df-09af-4d07-bad5-e4ef58f85df0 (image/jpg)
Respuesta
True
False
Pregunta 7
Pregunta
Who evolves, individual or population?
Image:
d4249243-ff07-4ba3-9b62-76c58d8e28f1 (image/png)
Respuesta
Individual
Population
Both
Pregunta 8
Pregunta
Why Darwin was so worry about his family?
Image:
ea33c3b8-c945-42ab-af29-4da3a25d4751.gif (image/gif)
Respuesta
Because he was very far away from them
Inbreeding resulted in weaker and sickly descendant
Inbreeding resulted in infertility
Pregunta 9
Pregunta
Why giraffe´s neck has been growing throughout the evolution?
Image:
9127db54-513f-410b-a348-acfb58e88c64 (image/jpg)
Respuesta
Because of natural selection against short necks
Because of natural selection for long necks
Because of natural selection against long necks
Pregunta 10
Pregunta
Smaller babies have more infectious problem and larger babies have problems at labour naturally. This is an example of:
Image:
111459a8-6dfa-4fce-91a4-d1eb43a0d767 (image/png)
Respuesta
Natural selection for extreme phenotypes
Natural selection against extreme phenotypes
Natural selection against medium phenotypes
Pregunta 11
Pregunta
What's disruptive selection?
Image:
d42931a8-8946-4ea7-ac81-4fb599630fd9 (image/jpg)
Respuesta
Selection against common traits
Selection for common traits
Selection for extreme traits without any change in the environment
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