1756579
Descripción
Test por Laurel McLaughlin, actualizado hace más de 1 año
|
Creado por Laurel McLaughlin
hace casi 10 años
|
|
Pregunta 1
Pregunta
If individuals in the last remaining population of a particular bird species were all highly related, which type of diversity would be of greatest concern when planning to keep the species from going extinct?
Image:
related-birds (image/jpg)
Respuesta
-
species diversity
-
genetic diversity
-
ecosystem diversity
-
taxonomic diversity
Pregunta 2
Pregunta
Why is the extinction of the Yangtze River dolphin considered particularly significant?
Respuesta
-
it was a keystone species
-
it was from a species-poor lineage
-
there was high genetic diversity within the species
-
it was a keystone prey species
Pregunta 3
Pregunta
You discover a new species at University of Waterloo, and it is only found on campus. This new species is best described as:
Respuesta
-
endangered
-
vulnerable
-
endemic
-
sensitive
Pregunta 4
Pregunta
Which of the following is likely NOT a major threat to the unique species pairs of stickleback in British Columbia? (Select all that apply)
Image:
stickleback-fish (image/jpg)
Respuesta
-
land development and habitat degradation
-
introduction of alien species
-
overexploitation
-
deterioration of water quality
Pregunta 5
Pregunta
Why are smaller, fragmented habitats often of lesser quality than contiguous habitats?
Respuesta
-
fragmentation often leads to detrimental edge effects
-
fragmentation reduces species' ability to move between habitat patches
-
smaller habitats often do not contain the necessary resources for large animals
-
all of the above
Pregunta 6
Pregunta
Why are smaller, isolated populations more likely to be extirpated?
Respuesta
-
they are more likely to be exterminated by severe stochastic events
-
they are subject to inbreeding depression and genetic drift
-
they are more likely to be subject to fitness trade-offs
-
both A and B
Pregunta 7
Pregunta
What is the leading cause of endangerment for marine species?
Respuesta
-
pollution
-
invasive species
-
overexploitation
-
habitat loss
Pregunta 8
Pregunta
Habitat loss is the leading cause of endangerment for terrestrial species.
Respuesta
- True
- False
Pregunta 9
Pregunta
Most endangered species are currently found on islands.
Respuesta
- True
- False
Pregunta 10
Pregunta
Experimental evidence from Brazil indicates that fragmenting tropical wet forests results in:
Respuesta
-
an eventual recovery of biodiversity and biomass
-
a decrease in biodiversity, and a decrease in biomass
-
an increase in biodiversity, and a decrease in biomass
-
a decrease in biodiversity, and an increase in biomass
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.