Ecotoxicology
Biology ⇒ Ecology and Environment
Ecotoxicology starts at 9 and continues till grade 12.
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See sample questions for grade 11
A lake receives runoff containing a pesticide with a half-life of 30 days. If the initial concentration is 100 mg/L, what will the concentration be after 60 days?
A scientist finds that the LD50 of a chemical for fish is 10 mg/L. What does this mean?
Describe how heavy metals can enter the food chain and affect human health.
Describe how pesticides can affect non-target species in an ecosystem.
Describe one way in which ecotoxicology is important for environmental policy-making.
Describe the role of indicator species in ecotoxicology.
Explain the difference between acute and chronic toxicity.
Explain the term 'ecological risk assessment' in the context of ecotoxicology.
Explain what is meant by the term 'sublethal effect' in ecotoxicology.
Explain why children are often more vulnerable to toxic substances than adults.
What is ecotoxicology?
