Define an ecosystem?
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What are biotic factors?
Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
What is the relation between environmental resistance and the population growth according to the biotic potential curve?
What is a food chain?
Explain why transgenics are considered a threat to the environmental safety?
What is the phytoplankton?
Besides mercury which other heavy metals cause toxic pollution?
What is harmonious ecological interaction?
What is Ecology?
Define mutualism?
What are abiotic factors?
What is an ecosystem?