Ecotoxicology
Biology ⇒ Ecology and Environment
Ecotoxicology starts at 9 and continues till grade 12.
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See sample questions for grade 12
A scientist is testing the effect of a new chemical on fish. She finds that at 10 mg/L, 50% of the fish die within 96 hours. What is the LC50 for this chemical?
Describe how pesticides can affect non-target species in an ecosystem.
Describe the role of indicator species in ecotoxicology.
Describe the term 'LC50' in ecotoxicology.
Describe the term 'NOEC' (No Observed Effect Concentration) in ecotoxicology.
Explain the concept of 'dose-response relationship' in ecotoxicology.
Explain the difference between acute and chronic toxicity.
Explain the difference between bioaccumulation and biomagnification.
Explain why children are often more vulnerable to toxicants than adults.
What is ecotoxicology?
