Biodiversity, Disturbance, And Succession: Question Preview (ID: 30563)

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True or False: Biodiversity is the total number of organisms present in an ecosystem.
a) True b) False c) d)
Ecosystem A has 4 individuals and 3 species. Ecosystem B has 6 individuals and 2 species. Which has a higher biodiversity?
a) Ecosystem A b) Ecosystem B c) d)
A coastal ecosystem is destroyed by a hurricane. Despite this, the ecosystem recovers quickly. This ecosystem is very
a) unhealthy b) unstable c) stable d) resilient
True or False: Biodiversity decreases an ecosystem's resilience.
a) True b) False c) d)
A disturbance will:
a) only remove species from an area b) only increase available resources c) only alter available resources d) remove species from an area and alter available resources
True or False: A disturbance to one part of an ecosystem results in changes all parts of an ecosystem.
a) True b) False c) d)
True or False: All disturbances are bad
a) True b) False c) d)
During primary succession, lichens are often the first to grow. This makes lichens a
a) consumer b) climax species c) pioneer species d) primary species
True or False: Primary succession occurs where no life or soil are present.
a) True b) False c) d)
A climax community:
a) is composed of lichens and mosses. b) exists in secondary succession but not primary succession. c) is only composed of consumers. d) is the final stage of succession.
A flood kills all the organisms in a meadow but leaves behind a small layer of soil. The ecological succession that occurs in this meadow would be
a) Primary b) Secondary c) Tertiary d)
Why would fungi and bacteria be important organisms to have during succession?
a) They are producers who create food for consumers. b) They decrease the biodiversity of an area. c) They are decomposers and help to build healthy soil. d) All of these.
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