D) Heterotrophs, primary
and secondary consumers
E) Producers, primary and secondary consumers
55. Choose the correct types of terrestrial ecosystems.
A)
forest ecosystems, grassland ecosystems, tundra
ecosystems
B) tundra ecosystems, freshwater ecosystems
C)
desert ecosystems, marine ecosystems
D) grassland ecosystems, marine ecosystems
E) forest ecosystems, freshwater ecosystems
56. Choose the option which could be considered as the advantageous of the
anthropogenic factor in the formation of an artificial urban environment?
A) replacing the natural environment with a man-made one
B) in soil degradation
C) biosphere formation
D) in water pollution
E)
in changing the terrain
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