Why waste is considered one of the major environmental issues?
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What is the primary energy source for life on earth?
Define a food chain?
what is transgenic food and its health hazards?
What is a community? What is the difference between the concepts of community and population?
What are primary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
What is benthos?
Which type of energy is the light used in photosynthesis transformed.
Explain the analyses provided by the study of human age pyramids?
Define transgenic food?
Why are less biodiverse ecosystems under the risk of suffering deep biological harms if submitted to even small changes?
What are the phytoplankton and the zooplankton?
Define mutualism?