Construct an argument to support a claim about the value of biodiversity in ecosystem resilience including keystone, invasive, native, endemic, indicator, and endangered species.
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Q 1/4
Score 0
An ecosystem that is not sustainable can break down when a natural disaster occurs. This can lead to organisms in the ecosystem either leaving the area or dying off. Increased biodiversity results in a more sustainable ecosystem because —
60
a greater number of plant species means that there is less barren land
a greater variety of species present allows more organisms to adapt after changes occur
there are fewer species to be affected by environmental stresses
the transition area between two ecosystems is narrower
Q 2/4
Score 0
Students in a science class visited four local ecosystems. The students observed the species present in each ecosystem and recorded their observations in the table. Based on these observations, which ecosystem is likely to be the least sustainable?
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Ecosystem 1, because it has the fewest species
Ecosystem 4, because it supports many animals
Ecosystem 3, because it has few predators
Ecosystem 2, because it includes both aquatic and terrestrial species
4 questions
Q.
An ecosystem that is not sustainable can break down when a natural disaster occurs. This can lead to organisms in the ecosystem either leaving the area or dying off. Increased biodiversity results in a more sustainable ecosystem because —
1
60 sec
SEV2d
Q.
Students in a science class visited four local ecosystems. The students observed the species present in each ecosystem and recorded their observations in the table. Based on these observations, which ecosystem is likely to be the least sustainable?
2
60 sec
SEV2d
Q.
Tropical rain forests have the greatest biodiversity of any type of land ecosystem. How does biodiversity contribute to the sustainability of an ecosystem?
3
60 sec
SEV2d
Q.
The food webs below model relationships among the organisms in two ecosystems. Which ecosystem would be more likely to survive if a disease killed the grasses?
