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WorksheetsEnvironmental science
Total questions: 6
Worksheet time: 3mins
Riparian zones are transitional ecosystems between land and water. Numerous studies have shown that riparian plants (and fungi) are critical for these ecosystems because...
they help intercept and retain nutrients from the water
they provide habitat for many organisms
they control the course of water flow and prevent erosion
all are correct answers
Niche construction is the process by which species modify their own and/or each other’s niches through their activities. For example, some bushes and trees increase the frequency of forest fires in woodland and chaparral ecosystems through the accumulation of branches, leaves, seeds and oils. This has selected for heritable characteristics that confer fire resistance, benefitting these species relative to their competitors that are not fire-tolerant. Which of the following is generally true?
a
This example of niche construction resulted in evolution, but not coevolution
This example of niche construction resulted in both evolution and coevolution
_____ biomes comprise a relatively small fraction of Earth’s biosphere but contain most of Earth’s ______, which is ultimately attributable to colonization by ______ starting about 470 million years ago.
Marine, biomass and macroscopic biodiversity, whales and sharks
Marine, biomass and macroscopic biodiversity, plants and fungi
Land, biomass and macroscopic biodiversity, plants and fungi
Land, biomass and macroscopic biodiversity, birds and mammals
They renew themselves over a short period of time.
Environment
Renewable Resources
Non-Renewable Resources
Environmentalism
According to one Environmental Principle, any intrusion from the outside may cause imbalance and collapsing of the system.
True
False
Who called his mass communication theory as "cultivation of dominant image patterns"?
Donald L Shaw
Maxwell McCombs
Davidson
George Gerbner
