Download SCIENCE 1206ch1 rev

SCIENCE 1206
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Define ecosystem.
What is a species? A population?
Define niche. Habitat.
What are the complementary process of photosynthesis and respiration?.
What information is shown by a food chain?
What are the 4 biomes of Canada?.
How is a food web different from a food chain?
Define: producer, consumer, herbivore, carnivore, omnivore, detritus, decomposer.
Draw a food chain that includes examples of all the terms identified in the previous question.
How are producers important to an ecosystem?
How are decomposers important to an ecosystem?
Pollution has been identified as a cause for the decline in frog numbers. How have humans
contributed to this process?
How have humans contributed to the problem of increases ultraviolet radiation reaching the
earth?
How have humans contributed to global warming?
Why are frogs among the first species to be noticeably affected by environmental changes?
Why should we be concerned about decreasing frog populations?
Why should we be cautious about introducing a species into an area?
Define biodiversity.
Explain why eliminating any species (even those considered to be pests) is undesirable.
Why is an Arctic ecosystem more fragile that a tropical rainforest ecosystem?
Describe the abiotic factors in a forest ecosystem.
Describe the biotic factors in a forest ecosystem.
How is energy supplied to an ecosystem?
How are plants important to the ecosystem?
Define photosynthesis in terms of materials and energy.
How is the albedo effect important to an ecosystem?
What factors increase the albedo of the Earth?
Distinguish between autotrophs and heterotrophs.
Why is there a pyramid of energy in all ecosystems?
What is a pyramid of numbers? A pyramid of bionmass?
Define paradigm and paradigm shift. Give an example of each.
What is as ecotone?
What is sustainable development?
List and describe the 5 symbiotic relationships that exist in an ecosystem?
What are trophic levels?
Know the oxygen, phosphorus, carbon and nitrogen cycles.
Pests and Pesticides.
Define sustainable and give an example of sustainable development.
What is succession? Primary? Secondary? Climax community? Pioneering organisms?
Interspecific and intraspecific competition
Surface area to volume ratio.